CVE-2026-30922 json
pyasn1 Vulnerable to Denial of Service via Unbounded Recursion
published 2026-03-17 7 mo ago modified 2026-09-17 53 d ago also EUVD-2026-12747 , GHSA-jr27-m4p2-rc6r , PYSEC-2026-2263
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.3, the `pyasn1` library is vulnerable to a Denial of Service (DoS) attack caused by uncontrolled recursion when decoding ASN.1 data with deeply nested structures. An attacker can supply a crafted payload containing thousands of nested `SEQUENCE` (`0x30`) or `SET` (`0x31`) tags with "Indefinite Length" (`0x80`) markers. This forces the decoder to recursively call itself until the Python interpreter crashes with a `RecursionError` or consumes all available memory (OOM), crashing the host application. This is a distinct vulnerability from CVE-2026-23490 (which addressed integer overflows in OID decoding). The fix for CVE-2026-23490 (`MAX_OID_ARC_CONTINUATION_OCTETS`) does not mitigate this recursion issue. Version 0.6.3 fixes this specific issue.
Patch / fix
- pypi pyasn1 0.6.3
- Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:0.6.3-1.el8ap, 0:4.6.29-2.el8ap
- Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:0.6.3-1.el9ap, 0:4.6.29-2.el9ap
- Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 0:0.6.3-1.el9ap, 0:4.7.12-1.el9ap
- Red Hat Red Hat Enterprise Linux 10 0:4.16.0-13.el10_1.4, 0:4.16.0-21.el10_2.1
- Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:4.16.0-5.el10_0.9
- Red Hat Red Hat Enterprise Linux 8 0:4.2.1-129.el8_10.25, 0:4.9.0-54.el8_10.33
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:4.1.1-90.el8_4.25, 0:4.2.1-65.el8_4.28
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:4.1.1-90.el8_4.25, 0:4.2.1-65.el8_4.28
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:4.2.1-89.el8_6.22
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:4.2.1-89.el8_6.22, 0:4.9.0-16.el8_6.22
- Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:4.2.1-89.el8_6.22, 0:4.9.0-16.el8_6.22
- Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:4.2.1-112.el8_8.17, 0:4.9.0-40.el8_8.19
- Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:4.2.1-112.el8_8.17, 0:4.9.0-40.el8_8.19
- Red Hat Red Hat Enterprise Linux 9 0:4.10.0-98.el9_7.13, 0:4.10.0-110.el9_8.2
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:4.10.0-43.el9_2.22
- Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:4.10.0-62.el9_4.25
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:4.10.0-86.el9_6.17
- Red Hat Red Hat AI Inference Server 3.3 1778244531
- Red Hat Red Hat Ansible Automation Platform 2.5 1777398315, 1777402264, 1777403872
- Red Hat Red Hat Ansible Automation Platform 2.6 1774417022, 1777296732, 1777311120, 1777387242
- Red Hat Red Hat Enterprise Linux AI 3.3 1778666124, 1778677745
- Red Hat Red Hat Migration Toolkit 1.8 1783931722
- Red Hat Red Hat OpenShift AI 2.25 1776343111, 1787292256, 1787292260, 1787652771, 1787652772, 1787801527, 1788185436, 1788185842, 1788185846, 1788185848, 1788185899, 1788186007, 1788301844, 1788315638
- Red Hat Red Hat OpenShift AI 3.3 1778263407, 1782471606, 1782471661, 1782471672, 1782471697, 1782471730, 1782471731, 1782471734, 1782471740, 1782471753, 1782471796, 1782471834, 1782471835, 1782471849, 1782471879, 1782472374
- Red Hat Red Hat OpenStack 1.5 1777407251, 1777436150, 1777452540
- Red Hat Red Hat Quay 3.10 1775169155
- Red Hat Red Hat Quay 3.12 1775253092
- Red Hat Red Hat Quay 3.15 1775169219
- Red Hat Red Hat Quay 3.16 1779204086
- pyasn1 Debian 12 0.4.8-3+deb12u2
- pyasn1 Debian 13 0.6.1-1+deb13u2
- pyasn1 Debian 14 0.6.3-1
debian advisories DEBIAN-CVE-2026-30922
- pyasn1 Ubuntu 22.04 LTS 0.4.8-1ubuntu0.2
- pyasn1 Ubuntu 24.04 LTS 0.4.8-4ubuntu0.2
- pyasn1 Ubuntu 25.10 0.6.1-1ubuntu0.2
- pyasn1 Ubuntu Pro 14.04 LTS 0.1.7-1ubuntu2.1+esm1
- pyasn1 Ubuntu Pro 16.04 LTS 0.1.9-1ubuntu0.1~esm1
- pyasn1 Ubuntu Pro 18.04 LTS 0.4.2-3ubuntu0.18.04.1~esm1
- pyasn1 Ubuntu Pro 20.04 LTS 0.4.2-3ubuntu0.20.04.1~esm1
ubuntu advisories UBUNTU-CVE-2026-30922
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- receptor ansible automation platform 2.6 1.6.5-1.el10ap
- receptor ansible automation platform inside 2.6, ansible automation platform inside 2.5, ansible automation platform developer 2.6 +3 more 1.6.5-1.el9ap
- receptorctl ansible automation platform 2.6 1.6.5-1.el10ap
- receptorctl ansible automation platform inside 2.6, ansible automation platform developer 2.6, ansible automation platform 2.6 1.6.5-1.el9ap
- python3-click ansible automation platform developer 2.6, ansible automation platform 2.6 8.3.3-1.el10ap
- python3.12-click ansible automation platform inside 2.6, ansible automation platform inside 2.5, ansible automation platform developer 2.6 +3 more 8.3.3-1.el9ap
- python3.12-pillow ansible automation platform 2.6, ansible automation platform 2.5 12.2.0-1.el9ap
- automation-controller ansible automation platform developer 2.6, ansible automation platform 2.6 4.7.12-1.el9ap
red hat advisories RHSA-2026:24762RHSA-2026:24761RHSA-2026:22970RHSA-2026:22987RHSA-2026:22969RHSA-2026:22135
- python-pyasn1 SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +12 more 0.4.2-150000.3.16.1
- python-pyasn1 SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +10 more 0.5.0-150400.12.13.1
- python-pyasn1 Linux Micro 6.1 0.5.0-slfo.1.1_3.1
- python-pyasn1 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 0.6.1-160000.4.1
- python-pyasn1 Linux Micro 6.0 0.5.0-4.1
- python-pyasn1 SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 0.1.9-4.14.1
suse advisories SUSE-SU-2026:1158-1SUSE-SU-2026:1076-1SUSE-SU-2026:1075-1SUSE-SU-2026:20878-1SUSE-SU-2026:20929-1SUSE-SU-2026:20835-1
- python-pyasn1 openSUSE Leap 16.0 0.6.1-160000.4.1
- python-pyasn1 openSUSE Tumbleweed 0.6.3-1.1
opensuse advisories openSUSE-SU-2026:20418-1openSUSE-SU-2026:10393-1
- resource-agents AlmaLinux 8 4.9.0-54.el8_10.33
- resource-agents-gcp AlmaLinux 8 4.9.0-54.el8_10.33
- resource-agents-paf AlmaLinux 8 4.9.0-54.el8_10.33
- resource-agents-aliyun AlmaLinux 8 4.9.0-54.el8_10.33
- fence-agents-apc AlmaLinux 10 4.16.0-13.el10_1.4
- fence-agents-eps AlmaLinux 10 4.16.0-13.el10_1.4
- fence-agents-rsa AlmaLinux 10 4.16.0-13.el10_1.4
- fence-agents-rsb AlmaLinux 10 4.16.0-13.el10_1.4
almalinux advisories ALSA-2026:13902ALSA-2026:13916ALSA-2026:13917ALSA-2026:12176
- fence-agents Rocky Linux 9 4.10.0-110.el9_8.2
- fence-agents Rocky Linux 10 4.16.0-21.el10_2.1
- fence-agents Rocky Linux 10 4.16.0-13.el10_1.4
- fence-agents Rocky Linux 9 4.10.0-98.el9_7.13
- resource-agents Rocky Linux 8 4.9.0-54.el8_10.33
- fence-agents Rocky Linux 8 4.2.1-129.el8_10.25
rocky linux advisories RLSA-2026:19355RLSA-2026:19138RLSA-2026:13916RLSA-2026:13917RLSA-2026:13902RLSA-2026:12176
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-30922 updated cvss 7.5
pyasn1: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion
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Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-rhel8-operator Red Hat Migration Toolkit for Virtualization mtv-candidate/mtv-rhel9-operator, migration-toolkit-virtualization/mtv-rhel9-operatoraffected: workaround, no fix planned “Will not fix”
-
Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-service-api-rhel9, openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9affected: workaround, no fix available, no fix planned “Will not fix”
-
Red Hat AI Inference Server rhaiis/vllm-tpu-rhel9affected: workaround, no fix available
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Red Hat Ansible Automation Platform 2 ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-24/ee-minimal-rhel8, ansible-automation-platform-24/ee-minimal-rhel9, ansible-automation-platform-24/lightspeed-rhel8, ansible-automation-platform-25/ee-minimal-rhel9, ansible-automation-platform-26/controller-rhel9, +5 moreaffected: workaround, no fix available, no fix planned “Will not fix”
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Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9, rhoai/odh-feature-server-rhel9, rhoai/odh-llama-stack-core-rhel9, rhoai/odh-ml-pipelines-runtime-generic-rhel9, rhoai/odh-training-cuda128-torch29-py312-rhel9affected: workaround, no fix available
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Red Hat OpenShift Container Platform 4 openshift4/ose-ansible-operator, openshift4/ztp-site-generate-rhel8, openshift4/ose-ansible-rhel9-operatoraffected: workaround, no fix available, no fix planned “Will not fix”
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Red Hat Satellite 6 satellite/iop-advisor-engine-rhel9, satellite/iop-insights-engine-rhel9 Red Hat Trusted Artifact Signer rhtas/segment-reporting-rhel9affected: workaround, no fix available
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Red Hat AI Inference Server 3.3 rhaiis 1778244531fixed: vendor fix RHSA-2026:16009
show 28 moreshow fewer
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Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25 1777398315, ansible-automation-platform-25 1777402264, ansible-automation-platform-25 1777403872fixed: vendor fix RHSA-2026:13553
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Red Hat Ansible Automation Platform 2.5 for RHEL 8 python3.12-pyasn1 0.6.3-1.el8ap, automation-controller-venv-tower 4.6.29-2.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 python3.12-pyasn1 0.6.3-1.el9ap, automation-controller-venv-tower 4.6.29-2.el9apfixed: vendor fix RHSA-2026:24761
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Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26 1774417022, ansible-automation-platform-26 1777296732, ansible-automation-platform-26 1777311120, ansible-automation-platform-26 1777387242fixed: vendor fix RHSA-2026:13545
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Red Hat Ansible Automation Platform 2.6 for RHEL 9 python3.12-pyasn1 0.6.3-1.el9ap, automation-controller 4.7.12-1.el9ap, automation-controller-ui 4.7.12-1.el9ap, automation-controller-cli 4.7.12-1.el9ap, automation-controller-server 4.7.12-1.el9ap, automation-controller-venv-tower 4.7.12-1.el9apfixed: vendor fix RHSA-2026:24762
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Red Hat Enterprise Linux AI 3.3 rhelai3 1778666124, rhelai3 1778677745fixed: vendor fix RHSA-2026:17611
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Red Hat Enterprise Linux AppStream (v. 8) fence-agents 4.2.1-129.el8_10.25, fence-agents-all 4.2.1-129.el8_10.25, fence-agents-apc 4.2.1-129.el8_10.25, fence-agents-eps 4.2.1-129.el8_10.25, fence-agents-rsa 4.2.1-129.el8_10.25, fence-agents-rsb 4.2.1-129.el8_10.25, +38 morefixed: vendor fix RHSA-2026:12176
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Red Hat Enterprise Linux AppStream (v. 9) fence-virt 4.10.0-110.el9_8.2, fence-virt 4.10.0-98.el9_7.13, fence-virtd 4.10.0-110.el9_8.2, fence-virtd 4.10.0-98.el9_7.13, fence-agents 4.10.0-110.el9_8.2, fence-agents 4.10.0-98.el9_7.13, +108 morefixed: vendor fix RHSA-2026:13917
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Red Hat Enterprise Linux AppStream (v. 10) fence-virt 4.16.0-13.el10_1.4, fence-virt 4.16.0-21.el10_2.1, fence-virtd 4.16.0-13.el10_1.4, fence-virtd 4.16.0-21.el10_2.1, fence-agents 4.16.0-13.el10_1.4, fence-agents 4.16.0-21.el10_2.1, +106 morefixed: vendor fix RHSA-2026:13916
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Red Hat Enterprise Linux AppStream AUS (v.8.4) fence-agents 4.2.1-65.el8_4.28, fence-agents-all 4.2.1-65.el8_4.28, fence-agents-apc 4.2.1-65.el8_4.28, fence-agents-eps 4.2.1-65.el8_4.28, fence-agents-rsa 4.2.1-65.el8_4.28, fence-agents-rsb 4.2.1-65.el8_4.28, +37 morefixed: vendor fix RHSA-2026:22135
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Red Hat Enterprise Linux AppStream AUS (v.8.6) fence-agents 4.2.1-89.el8_6.22, fence-agents-all 4.2.1-89.el8_6.22, fence-agents-apc 4.2.1-89.el8_6.22, fence-agents-eps 4.2.1-89.el8_6.22, fence-agents-rsa 4.2.1-89.el8_6.22, fence-agents-rsb 4.2.1-89.el8_6.22, +37 more Red Hat Enterprise Linux AppStream E4S (v.8.6) fence-agents 4.2.1-89.el8_6.22, fence-agents-all 4.2.1-89.el8_6.22, fence-agents-apc 4.2.1-89.el8_6.22, fence-agents-eps 4.2.1-89.el8_6.22, fence-agents-rsa 4.2.1-89.el8_6.22, fence-agents-rsb 4.2.1-89.el8_6.22, +38 morefixed: vendor fix RHSA-2026:22134
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Red Hat Enterprise Linux AppStream E4S (v.8.8) fence-agents 4.2.1-112.el8_8.17, fence-agents-all 4.2.1-112.el8_8.17, fence-agents-apc 4.2.1-112.el8_8.17, fence-agents-eps 4.2.1-112.el8_8.17, fence-agents-rsa 4.2.1-112.el8_8.17, fence-agents-rsb 4.2.1-112.el8_8.17, +37 morefixed: vendor fix RHSA-2026:20588
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Red Hat Enterprise Linux AppStream E4S (v.9.2) fence-virt 4.10.0-43.el9_2.22, fence-virtd 4.10.0-43.el9_2.22, fence-agents 4.10.0-43.el9_2.22, fence-virtd-cpg 4.10.0-43.el9_2.22, fence-virtd-tcp 4.10.0-43.el9_2.22, fence-agents-virsh 4.10.0-43.el9_2.22, +8 morefixed: vendor fix RHSA-2026:22987
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Red Hat Enterprise Linux AppStream E4S (v.9.4) fence-virt 4.10.0-62.el9_4.25, fence-virtd 4.10.0-62.el9_4.25, fence-agents 4.10.0-62.el9_4.25, fence-virtd-cpg 4.10.0-62.el9_4.25, fence-virtd-tcp 4.10.0-62.el9_4.25, fence-agents-virsh 4.10.0-62.el9_4.25, +8 morefixed: vendor fix RHSA-2026:22969
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Red Hat Enterprise Linux AppStream EUS (v. 10.0) fence-virt 4.16.0-5.el10_0.9, fence-virtd 4.16.0-5.el10_0.9, fence-agents 4.16.0-5.el10_0.9, fence-virtd-cpg 4.16.0-5.el10_0.9, fence-virtd-tcp 4.16.0-5.el10_0.9, fence-agents-all 4.16.0-5.el10_0.9, +50 morefixed: vendor fix RHSA-2026:17083
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Red Hat Enterprise Linux AppStream EUS (v.9.6) fence-virt 4.10.0-86.el9_6.17, fence-virtd 4.10.0-86.el9_6.17, fence-agents 4.10.0-86.el9_6.17, fence-virtd-cpg 4.10.0-86.el9_6.17, fence-virtd-tcp 4.10.0-86.el9_6.17, fence-agents-all 4.10.0-86.el9_6.17, +51 morefixed: vendor fix RHSA-2026:22970
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Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) fence-agents 4.2.1-65.el8_4.28, fence-agents-all 4.2.1-65.el8_4.28, fence-agents-apc 4.2.1-65.el8_4.28, fence-agents-eps 4.2.1-65.el8_4.28, fence-agents-rsa 4.2.1-65.el8_4.28, fence-agents-rsb 4.2.1-65.el8_4.28, +33 morefixed: vendor fix RHSA-2026:22135
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Red Hat Enterprise Linux AppStream TUS (v.8.6) fence-agents 4.2.1-89.el8_6.22, fence-agents-all 4.2.1-89.el8_6.22, fence-agents-apc 4.2.1-89.el8_6.22, fence-agents-eps 4.2.1-89.el8_6.22, fence-agents-rsa 4.2.1-89.el8_6.22, fence-agents-rsb 4.2.1-89.el8_6.22, +37 morefixed: vendor fix RHSA-2026:22134
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Red Hat Enterprise Linux AppStream TUS (v.8.8) fence-agents 4.2.1-112.el8_8.17, fence-agents-all 4.2.1-112.el8_8.17, fence-agents-apc 4.2.1-112.el8_8.17, fence-agents-eps 4.2.1-112.el8_8.17, fence-agents-rsa 4.2.1-112.el8_8.17, fence-agents-rsb 4.2.1-112.el8_8.17, +36 morefixed: vendor fix RHSA-2026:20588
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Red Hat Enterprise Linux High Availability AUS (v.8.4) resource-agents 4.1.1-90.el8_4.25, fence-agents-aws 4.2.1-65.el8_4.28, fence-agents-gce 4.2.1-65.el8_4.28, fence-agents-aliyun 4.2.1-65.el8_4.28, resource-agents-gcp 4.1.1-90.el8_4.25, fence-agents-azure-arm 4.2.1-65.el8_4.28, +1 morefixed: vendor fix RHSA-2026:22135
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Red Hat Enterprise Linux High Availability E4S (v.8.6) resource-agents 4.9.0-16.el8_6.22, fence-agents-aws 4.2.1-89.el8_6.22, fence-agents-gce 4.2.1-89.el8_6.22, fence-agents-aliyun 4.2.1-89.el8_6.22, resource-agents-gcp 4.9.0-16.el8_6.22, resource-agents-paf 4.9.0-16.el8_6.22, +2 morefixed: vendor fix RHSA-2026:22134
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Red Hat Enterprise Linux High Availability E4S (v.8.8) resource-agents 4.9.0-40.el8_8.19, fence-agents-aws 4.2.1-112.el8_8.17, fence-agents-gce 4.2.1-112.el8_8.17, resource-agents-gcp 4.9.0-40.el8_8.19, resource-agents-paf 4.9.0-40.el8_8.19, fence-agents-aliyun 4.2.1-112.el8_8.17, +3 morefixed: vendor fix RHSA-2026:20588
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Red Hat Enterprise Linux High Availability E4S (v.9.2) fence-agents-all 4.10.0-43.el9_2.22, fence-agents-apc 4.10.0-43.el9_2.22, fence-agents-aws 4.10.0-43.el9_2.22, fence-agents-eps 4.10.0-43.el9_2.22, fence-agents-gce 4.10.0-43.el9_2.22, fence-agents-rsa 4.10.0-43.el9_2.22, +37 morefixed: vendor fix RHSA-2026:22987
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Red Hat Enterprise Linux High Availability E4S (v.9.4) fence-agents-all 4.10.0-62.el9_4.25, fence-agents-apc 4.10.0-62.el9_4.25, fence-agents-aws 4.10.0-62.el9_4.25, fence-agents-eps 4.10.0-62.el9_4.25, fence-agents-gce 4.10.0-62.el9_4.25, fence-agents-rsa 4.10.0-62.el9_4.25, +37 morefixed: vendor fix RHSA-2026:22969
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Red Hat Enterprise Linux High Availability TUS (v.8.6) resource-agents 4.9.0-16.el8_6.22, fence-agents-aws 4.2.1-89.el8_6.22, fence-agents-gce 4.2.1-89.el8_6.22, fence-agents-aliyun 4.2.1-89.el8_6.22, resource-agents-gcp 4.9.0-16.el8_6.22, resource-agents-paf 4.9.0-16.el8_6.22, +2 morefixed: vendor fix RHSA-2026:22134
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Red Hat Enterprise Linux High Availability TUS (v.8.8) resource-agents 4.9.0-40.el8_8.19, fence-agents-aws 4.2.1-112.el8_8.17, fence-agents-gce 4.2.1-112.el8_8.17, resource-agents-gcp 4.9.0-40.el8_8.19, resource-agents-paf 4.9.0-40.el8_8.19, fence-agents-aliyun 4.2.1-112.el8_8.17, +3 morefixed: vendor fix RHSA-2026:20588
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Red Hat Enterprise Linux HighAvailability (v. 8) resource-agents 4.9.0-54.el8_10.33, fence-agents-aws 4.2.1-129.el8_10.25, fence-agents-gce 4.2.1-129.el8_10.25, resource-agents-gcp 4.9.0-54.el8_10.33, resource-agents-paf 4.9.0-54.el8_10.33, fence-agents-aliyun 4.2.1-129.el8_10.25, +3 morefixed: vendor fix RHSA-2026:12176
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Red Hat Enterprise Linux HighAvailability EUS EXTENSION (v.8.4) resource-agents 4.1.1-90.el8_4.25, fence-agents-aws 4.2.1-65.el8_4.28, fence-agents-gce 4.2.1-65.el8_4.28, fence-agents-aliyun 4.2.1-65.el8_4.28, resource-agents-gcp 4.1.1-90.el8_4.25, fence-agents-azure-arm 4.2.1-65.el8_4.28, +1 morefixed: vendor fix RHSA-2026:22135
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Red Hat Enterprise Linux Resilient Storage E4S (v.9.2) fence-agents-all 4.10.0-43.el9_2.22, fence-agents-apc 4.10.0-43.el9_2.22, fence-agents-aws 4.10.0-43.el9_2.22, fence-agents-eps 4.10.0-43.el9_2.22, fence-agents-gce 4.10.0-43.el9_2.22, fence-agents-rsa 4.10.0-43.el9_2.22, +36 morefixed: vendor fix RHSA-2026:22987
12 more fixed, 20 more not affected in the full advisory
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/pyasn1/pyasn1/security/advisories/GHSA-jr27-m4p2-rc6r referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | pyasn1 | <0.6.3 |
0.6.3 |
Affected products
- pyasn1 pyasn1
- Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
- Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
- Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
- Red Hat Red Hat AI Inference Server 3.3
- Red Hat Red Hat Ansible Automation Platform 2.5
- Red Hat Red Hat Ansible Automation Platform 2.6
- Red Hat Red Hat Enterprise Linux AI 3.3
- Red Hat Red Hat Migration Toolkit 1.8
- Red Hat Red Hat OpenShift AI 2.25
- Red Hat Red Hat OpenShift AI 3.3
- Red Hat Red Hat OpenStack 1.5
- Red Hat Red Hat Quay 3.10
- Red Hat Red Hat Quay 3.12
- Red Hat Red Hat Quay 3.15
- Red Hat Red Hat Quay 3.16
- Red Hat Red Hat Quay 3.9
- Red Hat Red Hat Trusted Artifact Signer 1.4
- Red Hat Migration Toolkit for Containers
- Red Hat Migration Toolkit for Virtualization
- Red Hat OpenShift Lightspeed
- Red Hat OpenShift Service Mesh 3
- Red Hat Red Hat AI Inference Server
- Red Hat Red Hat Ansible Automation Platform 2
- Red Hat Red Hat OpenShift AI (RHOAI)
- Red Hat Red Hat OpenShift Container Platform 4
- Red Hat Red Hat OpenStack Platform 18.0
- Red Hat Red Hat Satellite 6
- Red Hat Red Hat Trusted Artifact Signer
Classification
References
-
github.com
/pyasn1/pyasn1/commit/25ad481c19fdb006e20485ef3fc2e5b3eff30ef0
web, patch
-
github.com
/pyasn1/pyasn1/commit/5a49bd1fe93b5b866a1210f6bf0a3924f21572c8
web
-
github.com
/pyasn1/pyasn1/security/advisories/GHSA-jr27-m4p2-rc6r
web, exploit, vendor-advisory, evidence
-
access.redhat.com
/errata/RHSA-2026:24761
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13512
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:24762
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13508
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:17083
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13916
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:19138
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:12176
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:22135
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:22134
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:20588
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:22987
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:22969
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:22970
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13917
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:19355
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13902
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:22133
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:22132
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:22131
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:16009
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13553
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:13545
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:6309
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:17611
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:41928
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:10184
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:65126
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:19712
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:37275
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:14020
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:6912
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:6720
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:6568
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:19375
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:6926
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:8437
vendor-advisory, web
-
openwall.com
/lists/oss-security/2026/03/20/4
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-30922
advisory
-
access.redhat.com
/security/cve/CVE-2026-30922
web
-
bugzilla.redhat.com
/show_bug.cgi?id=2448553
web
-
github.com
/pyasn1/pyasn1
package
-
github.com
/pyasn1/pyasn1/releases/tag/v0.6.3
web
-
github.com
/pypa/advisory-database/tree/main/vulns/pyasn1/PYSEC-2026-2263.yaml
web
-
lists.debian.org
/debian-lts-announce/2026/05/msg00001.html
web
-
security.access.redhat.com
/data/csaf/v2/vex/2026/cve-2026-30922.json
web
Sources
- CVE List CVE-2026-30922
- GitHub Advisory GHSA-jr27-m4p2-rc6r
- NVD CVE-2026-30922
- OSV PYSEC-2026-2263
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.