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Fencer Vulns
high 7.5

CVE-2026-21441 json

urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

published 2026-01-07 10 mo ago modified 2026-09-17 53 d ago also EUVD-2026-1188 , GHSA-38jv-5279-wg99 , PYSEC-2026-1996

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP `Content-Encoding` header (e.g., `gzip`, `deflate`, `br`, or `zstd`). When using the streaming API, the library decompresses only the necessary bytes, enabling partial content consumption. Starting in version 1.22 and prior to version 2.6.3, for HTTP redirect responses, the library would read the entire response body to drain the connection and decompress the content unnecessarily. This decompression occurred even before any read methods were called, and configured read limits did not restrict the amount of decompressed data. As a result, there was no safeguard against decompression bombs. A malicious server could exploit this to trigger excessive resource consumption on the client. Applications and libraries are affected when they stream content from untrusted sources by setting `preload_content=False` when they do not disable redirects. Users should upgrade to at least urllib3 v2.6.3, in which the library does not decode content of redirect responses when `preload_content=False`. If upgrading is not immediately possible, disable redirects by setting `redirect=False` for requests to untrusted source.

Patch / fix

  • pypi urllib3 2.6.3
  • Red Hat Red Hat Enterprise Linux 10 0:1.26.19-2.el10_1.1
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:1.26.19-2.el10_0.1
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:0.1.13-1.el7_9.6
  • Red Hat Red Hat Enterprise Linux 8 0:1.24.2-9.el8_10, 0:1.26.12-6.el8_10, 0:1.26.19-2.el8_10, 0:4.2.1-129.el8_10.20, 0:4.9.0-54.el8_10.27
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.24.2-4.el8_2.1
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.24.2-5.el8_4.1, 0:4.1.1-90.el8_4.22, 0:4.2.1-65.el8_4.25
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.24.2-5.el8_4.1, 0:4.1.1-90.el8_4.22, 0:4.2.1-65.el8_4.25
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.24.2-5.el8_6.4, 0:4.2.1-89.el8_6.20
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.24.2-5.el8_6.4, 0:4.2.1-89.el8_6.20, 0:4.9.0-16.el8_6.19
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.24.2-5.el8_6.4, 0:4.2.1-89.el8_6.20, 0:4.9.0-16.el8_6.19
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.24.2-5.el8_8.3, 0:1.26.12-1.el8_8.3, 0:4.2.1-112.el8_8.15, 0:4.9.0-40.el8_8.15
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.24.2-5.el8_8.3, 0:1.26.12-1.el8_8.3, 0:4.2.1-112.el8_8.15, 0:4.9.0-40.el8_8.15
  • Red Hat Red Hat Enterprise Linux 9 0:1.26.5-6.el9_7.1, 0:1.26.12-5.el9_7.1, 0:1.26.19-1.el9_7.1, 0:4.10.0-98.el9_7.4
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:1.26.5-3.el9_0.2, 0:4.10.0-20.el9_0.27
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.26.5-3.el9_2.3, 0:1.26.12-1.el9_2.2, 0:4.10.0-43.el9_2.18
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:1.26.5-5.el9_4.3, 0:1.26.12-2.el9_4.3, 0:1.26.18-2.el9_4.2, 0:4.10.0-62.el9_4.21
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:1.26.5-6.el9_6.1, 0:1.26.12-5.el9_6.1, 0:1.26.19-1.el9_6.1, 0:4.10.0-86.el9_6.14
  • Red Hat Red Hat OpenStack Platform 17.1 for RHEL 8 0:1.26.5-3.el8ost.3
  • Red Hat Red Hat Satellite 6.16 for RHEL 8 0:2.6.3-0.1.el8pc
  • Red Hat Red Hat Satellite 6.16 for RHEL 9 0:2.6.3-0.1.el9pc
  • Red Hat Red Hat Satellite 6.17 for RHEL 9 0:2.6.3-0.1.el9pc
  • Red Hat Red Hat Satellite 6.18 for RHEL 9 0:2.6.3-1.el9pc
  • Red Hat RHUI 4 for RHEL 8 0:2.6.3-1.el8ui
  • Red Hat cert-manager operator for Red Hat OpenShift 1.18 1768985261, 1768985286, 1769093352, 1769093403, 1769093421, 1769419247, 1769419291, 1769419550
  • Red Hat mirror registry for Red Hat OpenShift 2.0 1782177012
  • Red Hat Multicluster Global Hub 1.4.5 1770126537
  • Red Hat Network Observability (NETOBSERV) 1.11.0 1771226060
  • Red Hat OpenShift API for Data Protection 1.3 1770420495, 1770420562, 1770420563, 1770420565, 1770420728, 1770420975, 1770421082, 1770421116, 1771360116, 1771360118
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1780204232, 1780204249, 1780204631, 1780204696, 1780204887, 1780238563, 1780241410
  • python-urllib3 Debian 12 1.26.12-1+deb12u3
  • python-urllib3 Debian 13 2.3.0-3+deb13u1
  • python-urllib3 Debian 14 2.5.0-2

debian advisories DEBIAN-CVE-2026-21441

  • python-urllib3 Ubuntu 22.04 LTS 1.26.5-1~exp1ubuntu0.5
  • python-urllib3 Ubuntu 24.04 LTS 2.0.7-1ubuntu0.4
  • python-urllib3 Ubuntu 25.10 2.3.0-3ubuntu0.2
  • python-urllib3 Ubuntu Pro 20.04 LTS 1.25.8-2ubuntu0.4+esm3

ubuntu advisories UBUNTU-CVE-2026-21441

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

  • python-urllib3 openstack 17.1 1.26.5-3.el8ost.3
  • python3-urllib3 openstack 17.1 1.26.5-3.el8ost.3
  • python-s3transfer RHEL 7 0.1.13-1.el7_9.6
  • python-urllib3 satellite capsule 6.16, satellite 6.16 2.6.3-0.1.el8pc
  • python-urllib3 satellite capsule 6.17, satellite capsule 6.16, satellite 6.17 +1 more 2.6.3-0.1.el9pc
  • python3.11-urllib3 satellite capsule 6.16, satellite 6.16 2.6.3-0.1.el8pc
  • python3.11-urllib3 satellite capsule 6.17, satellite capsule 6.16, satellite 6.17 +1 more 2.6.3-0.1.el9pc
  • python3.12-aiohttp satellite capsule 6.18, satellite 6.18 3.13.3-1.el9pc

red hat advisories RHSA-2026:28043RHSA-2026:2911RHSA-2026:2765RHSA-2026:2764RHSA-2026:2760RHSA-2026:2728

  • python-urllib3 SLE Module for Python 3 15 SP7, SLE Module for Public Cloud 15 SP4, SLE High Performance Computing 15 SP5-ESPOS +10 more 2.0.7-150400.7.24.1
  • python-urllib3 SLES LTSS Extended Security 12 SP5, SLE Module for Public Cloud 12 1.25.10-3.48.4
  • python-urllib3_1 SLES for SAP applications 16.0, SLES 16.0 1.26.20-160000.3.1
  • python-urllib3_1 SLE Module for Python 3 15 SP7, openSUSE Leap 15.6 1.26.18-150600.3.6.1
  • python-urllib3 SLE Module for Basesystem 15 SP7, SLE Micro 5.5, SLE Micro 5.4 +2 more 1.25.10-150300.4.21.1
  • python-urllib3 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.5.0-160000.3.1
  • python-urllib3 Linux Micro 6.1 2.1.0-slfo.1.1_3.1
  • python-urllib3 Linux Micro 6.0 2.1.0-4.1

suse advisories SUSE-SU-2026:0255-2SUSE-SU-2026:1412-1SUSE-SU-2026:20591-1SUSE-SU-2026:0635-1SUSE-SU-2026:0443-1SUSE-SU-2026:0255-1

  • oci-cli openSUSE Tumbleweed 3.76.2-1.1
  • python-urllib3_1 openSUSE Leap 16.0 1.26.20-160000.3.1
  • python-urllib3_1 openSUSE Tumbleweed 1.26.20-5.1
  • python-urllib3 openSUSE Leap 16.0 2.5.0-160000.3.1
  • python-urllib3 openSUSE Tumbleweed 2.6.3-1.1

opensuse advisories openSUSE-SU-2026:10539-1openSUSE-SU-2026:20271-1openSUSE-SU-2026:10096-1openSUSE-SU-2026:20088-1openSUSE-SU-2026:10049-1

  • python3-urllib3 AlmaLinux 10 1.26.19-2.el10_1.1
  • python3-urllib3 AlmaLinux 9 1.26.5-6.el9_7.1
  • python3.12-urllib3 AlmaLinux 9 1.26.19-1.el9_7.1
  • python3.11-urllib3 AlmaLinux 9 1.26.12-5.el9_7.1
  • python3.11-urllib3 AlmaLinux 8 1.26.12-6.el8_10
  • python3.12-urllib3 AlmaLinux 8 1.26.19-2.el8_10
  • fence-virt AlmaLinux 9 4.10.0-98.el9_7.4
  • fence-virtd AlmaLinux 9 4.10.0-98.el9_7.4

almalinux advisories ALSA-2026:1086ALSA-2026:1087ALSA-2026:1088ALSA-2026:1089ALSA-2026:1224ALSA-2026:1226

  • fence-agents Rocky Linux 8 4.2.1-129.el8_10.20
  • python-urllib3 Rocky Linux 10 1.26.19-2.el10_1.1
  • python-urllib3 Rocky Linux 9 1.26.5-6.el9_7.1
  • python3.12-urllib3 Rocky Linux 9 1.26.19-1.el9_7.1
  • python3.11-urllib3 Rocky Linux 9 1.26.12-5.el9_7.1
  • fence-agents Rocky Linux 9 4.10.0-98.el9_7.4
  • resource-agents Rocky Linux 8 4.9.0-54.el8_10.27
  • python3.11-urllib3 Rocky Linux 8 1.26.12-6.el8_10

rocky linux advisories RLSA-2026:1240RLSA-2026:1086RLSA-2026:1087RLSA-2026:1088RLSA-2026:1089RLSA-2026:1239

  • py3-urllib3 Alpine 3.20 1.26.18-r2
  • py3-urllib3 Alpine 3.22, Alpine 3.21 1.26.20-r1
  • py3-urllib3 Alpine 3.24, Alpine 3.23 2.6.3-r0

alpine advisories ALPINE-CVE-2026-21441

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-urllib3 Azure Linux 3.0 2.0.7-4
  • python-urllib3 CBL-Mariner 2.0 1.26.19-3
  • tensorflow Azure Linux 3.0 2.16.1-10

azure linux advisories AZL-73730AZL-73734AZL-74153

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2026-21441 updated cvss 7.5

urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

  • Red Hat External Secrets Operator for Red Hat OpenShift external-secrets-operator/bitwarden-sdk-server-rhel9
    affected: no fix available
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/vector-rhel9, openshift-logging/kibana6-rhel8, openshift-logging/elasticsearch6-rhel9, openshift-logging/logging-curator5-rhel9, openshift-logging/elasticsearch-proxy-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-rhel8-operator, rhmtc/openshift-migration-hook-runner-rhel8
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat Migration Toolkit for Virtualization mtv-candidate/mtv-rhel9-operator, mtv-candidate/mtv-virt-v2v-rhel9, mtv-candidate/mtv-must-gather-rhel8, mtv-candidate/mtv-cli-download-rhel9, mtv-candidate/mtv-console-plugin-rhel9, migration-toolkit-virtualization/mtv-virt-v2v-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Multiarch Tuning Operator multiarch-tuning/multiarch-tuning-rhel9-operator Red Hat Multicluster Engine for Kubernetes multicluster-engine/assisted-service-8-rhel8, multicluster-engine/assisted-service-9-rhel9, multicluster-engine/assisted-installer-agent-rhel8, multicluster-engine/assisted-installer-controller-rhel8 Red Hat OpenShift Developer Tools and Services ocp-tools-4/jenkins-rhel8, ocp-tools-4/jenkins-rhel9, ocp-tools-4/jenkins-agent-base-rhel8, ocp-tools-4/jenkins-agent-base-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-ocp-rag-rhel9, openshift-lightspeed/lightspeed-service-api-rhel9, openshift-lightspeed/lightspeed-console-plugin-rhel9, openshift-lightspeed/lightspeed-console-plugin-pf5-rhel9, openshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9, openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9
    affected: no fix available
  • Red Hat OpenShift Pipelines openshift-pipelines/pipelines-events-rhel8, openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-ui-rhel9, openshift-pipelines/pipelines-cli-tkn-rhel8, openshift-pipelines/pipelines-hub-api-rhel8, openshift-pipelines/pipelines-webhook-rhel8, +26 more
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift Serverless openshift-serverless-1/kn-eventing-integrations-transform-jsonata-rhel9
    affected: no fix available
  • Red Hat AI Inference Server rhaiis/vllm-tpu-rhel9, rhaiis/vllm-spyre-rhel9, rhai/base-image-cpu-rhel9, rhai/base-image-cuda-rhel9, rhai/base-image-rocm-rhel9, rhaiis-preview/vllm-cuda-rhel9 Red Hat Ansible Automation Platform 2 python3.11-urllib3, automation-controller, ansible-automation-platform-24/hub-rhel8, ansible-automation-platform-25/hub-rhel8, ansible-automation-platform-24/hub-web-rhel8, ansible-automation-platform-25/gateway-rhel8, +48 more
    affected: no fix available, no fix planned “Will not fix”
show 23 more
  • Red Hat Ansible Automation Platform Ansible Core 2 ansible-automation-platform/ee-minimal-rhel8, ansible-automation-platform/ee-minimal-rhel9, ansible-automation-platform-tech-preview/ee-minimal-rhel8, ansible-automation-platform-tech-preview/ee-minimal-rhel9 Red Hat Certification Program for Red Hat Enterprise Linux 9 rhcertification/redhat-certification-baremetal, rhcertification/redhat-certification-system-ai
    affected: no fix available
  • Red Hat Connectivity Link 1 rhcl-1/wasm-shim-rhel9, rhcl-1/rhcl-console-plugin-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9
    affected: no fix available “Fix deferred”
  • Red Hat Edge Manager preview rhem/flightctl-db-setup-rhel9, rhem/flightctl-cli-artifacts-rhel9 Red Hat Enterprise Linux 8 ubi8, ubi8/ubi, rhel8/pcp, ubi8-init, rhel8/cups, ubi8/php-74, +64 more Red Hat Enterprise Linux 9 ubi9, ubi9/ubi, rhel9/pcp, ubi9-init, rhel9/cups, rhel9/rtla, +89 more Red Hat Enterprise Linux 10 ubi10, ubi10/ubi, rhel10/pcp, ubi10-init, rhel10/cups, rhel10/rtla, +53 more
    affected: no fix available
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-aws-cuda-rhel9, rhelai3/bootc-gcp-cuda-rhel9, rhelai3/disk-image-cuda-rhel9, rhelai3/bootc-azure-cuda-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-ta-lmes-job-rhel9, rhoai/odh-ta-lmes-driver-rhel9, rhoai/odh-llama-stack-core-rhel9, rhoai/odh-modelmesh-runtime-adapter-rhel8, rhoai/odh-trustyai-service-operator-rhel9, rhoai/odh-model-registry-job-async-upload-rhel9, +1 more
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-vmware-vsphere-csi-driver-rhel9, openshift4/ose-vmware-vsphere-csi-driver-rhel9-operator Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9, odf4/odf-must-gather-rhel9, odf4/ocs-client-console-rhel9, odf4/rook-ceph-rhel9-operator
    affected: no fix available
  • Red Hat OpenShift Dev Spaces devspaces-tech-preview/jetbrains-ide-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6 python-urllib3, python3-urllib3, satellite/iop-vmaas-rhel9, satellite/iop-yuptoo-rhel9, satellite/iop-host-inventory-rhel9, satellite/iop-advisor-backend-rhel9
    affected: no fix available
  • Red Hat Zero Trust Workload Identity Manager - Tech Preview zero-trust-workload-identity-manager/spiffe-spire-server-rhel9, zero-trust-workload-identity-manager/spiffe-spire-oidc-discovery-provider-rhel9, zero-trust-workload-identity-manager/zero-trust-workload-identity-manager-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-9
    under investigation
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.18 cert-manager 1768985261, cert-manager 1768985286, cert-manager 1769093352, cert-manager 1769093403, cert-manager 1769093421, cert-manager 1769419247, +2 more
    fixed: vendor fix RHSA-2026:1038
  • Red Hat mirror registry for Red Hat OpenShift 2.0 openshift/mirror-registry-rhel8 1782177012
    fixed: vendor fix RHSA-2026:28441
  • Red Hat Multicluster Global Hub 1.4.9 multicluster-globalhub 1770126537
    fixed: vendor fix RHSA-2026:2500
  • Red Hat Multicluster Global Hub 1.5.8 multicluster-globalhub 1770109405
    fixed: vendor fix RHSA-2026:2256
  • Red Hat Network Observability (NETOBSERV) 1.11.0 network-observability 1771226060
    fixed: vendor fix RHSA-2026:2900
  • Red Hat OpenShift API for Data Protection 1.3 oadp 1770420495, oadp 1770420562, oadp 1770420563, oadp 1770420565, oadp 1770420728, oadp 1770420975, +4 more
    fixed: vendor fix RHSA-2026:3444
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 rhacm2/subctl-rhel9 1780238563, rhacm2/nettest-rhel9 1780241410, rhacm2/lighthouse-agent-rhel9 1780204232, rhacm2/lighthouse-coredns-rhel9 1780204249, rhacm2/submariner-gateway-rhel9 1780204887, rhacm2/submariner-globalnet-rhel9 1780204696, +1 more
    fixed: vendor fix RHSA-2026:25127
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2 1774084104, rhacm2 1774085848, rhacm2 1774086225, rhacm2 1774372741, rhacm2 1774550347, rhacm2 1774550350, +1 more
    fixed: vendor fix RHSA-2026:8151
  • Red Hat Advanced Cluster Security 4.8 advanced-cluster-security 1772474383, advanced-cluster-security 1773235880
    fixed: vendor fix RHSA-2026:4466
  • Red Hat Advanced Cluster Security 4.9 advanced-cluster-security 1772473062, advanced-cluster-security 1773235860
    fixed: vendor fix RHSA-2026:4467
  • Red Hat AI Inference Server 3.2 rhaiis 1772160593, rhaiis 1772160625, rhaiis/model-opt-cuda-rhel9 1787772157
    fixed: vendor fix RHSA-2026:61628
  • Red Hat Ansible Automation Platform 2.4 ansible-automation-platform-24 1768268588
    fixed: vendor fix RHSA-2026:1599

78 more fixed, 75 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
none
Automatable
yes
Technical impact
partial
Assessed
10 mo ago

Exploit prediction

2.92% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 4.0 8.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/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 urllib3
>=1.22, <2.6.3
2.6.3

Affected products

  • urllib3 urllib3
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
  • 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 9.0 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat OpenStack Platform 17.1 for RHEL 8
  • Red Hat Red Hat Satellite 6.16 for RHEL 8
  • Red Hat Red Hat Satellite 6.16 for RHEL 9
  • Red Hat Red Hat Satellite 6.17 for RHEL 9
  • Red Hat Red Hat Satellite 6.18 for RHEL 9
  • Red Hat RHUI 4 for RHEL 8
  • Red Hat cert-manager operator for Red Hat OpenShift 1.18
  • Red Hat mirror registry for Red Hat OpenShift 2.0
  • Red Hat Multicluster Global Hub 1.4.5
  • Red Hat Network Observability (NETOBSERV) 1.11.0
  • Red Hat OpenShift API for Data Protection 1.3
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15
  • Red Hat Red Hat Advanced Cluster Security 4.8
  • Red Hat Red Hat Advanced Cluster Security 4.9
  • Red Hat Red Hat AI Inference Server 3.2
  • Red Hat Red Hat Ansible Automation Platform 2.4
  • Red Hat Red Hat Ansible Automation Platform 2.5
  • Red Hat Red Hat Ansible Automation Platform 2.6
  • Red Hat Red Hat Ceph Storage 7.1
  • Red Hat Red Hat Ceph Storage 8
  • Red Hat Red Hat Ceph Storage 9
  • Red Hat Red Hat Discovery 2
  • Red Hat Red Hat Migration Toolkit 1.8
  • Red Hat Red Hat multicluster global hub 1.5.3
  • Red Hat Red Hat OpenShift AI 2.25
  • Red Hat Red Hat OpenShift AI 3.3
  • Red Hat Red Hat OpenShift Dev Spaces (RHOSDS) 3.26
  • Red Hat Red Hat OpenShift GitOps 1.17
  • Red Hat Red Hat OpenShift GitOps 1.18
  • Red Hat Red Hat OpenShift GitOps 1.19
  • Red Hat Red Hat Quay 3.10

Classification

Weakness
  • CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)

References

Sources

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.