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Fencer Vulns
high 7.5

CVE-2026-85393 json

node-forge through 1.4.0 RSA PKCS#1 v1.5 Signature Forgery via Nested DigestAlgorithm Padding

published 2026-09-03 2 mo ago modified 2026-09-24 45 d ago also EUVD-2026-70670

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894.

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-2026-85393 updated cvss 7.5

node-forge: node-forge: Signature forgery vulnerability in RSA PKCS#1 v1.5 verification

  • Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel8, workload-availability/node-healthcheck-rhel9-operator, workload-availability/node-healthcheck-operator-bundle, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-ui-rhel9
    affected: workaround, no fix available
  • Red Hat Ansible Automation Platform 2 automation-controller 4.5.35-1.el9ap, ansible-automation-platform-24/lightspeed-rhel8, automation-eda-controller 1.0.10-0.1.20260317.git9cae940.el8ap
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Build of Podman Desktop rh-podman-desktop.git 1.1.0 Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9, rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend, rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Fuse 7 node-forge 0.10.0 Red Hat OpenShift GitOps microshift-gitops 1.19.2-36.el9, openshift-gitops-argocd-cli 1.19.2-36.el9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Self-service automation portal 2 ansible-automation-platform/automation-portal
    affected: workaround, no fix available
  • Red Hat Ansible Automation Platform 2.2 ansible-automation-platform/bootc-automation-portal-rhel9 1792641102
    fixed: vendor fix RHSA-2026:88200
  • Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25/lightspeed-rhel8 1789685837
    fixed: vendor fix RHSA-2026:71210
show 14 more
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/lightspeed-rhel9 1789656884
    fixed: vendor fix RHSA-2026:71179
  • Red Hat OpenShift AI 3.4 rhoai/odh-feature-server-rhel9 1792685074
    fixed: vendor fix RHSA-2026:92510
  • Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift Service Mesh 3 openshift-service-mesh/kiali-rhel9-operator, openshift-service-mesh/kiali-operator-bundle
    not affected: component not present
  • Red Hat 3scale API Management Platform 2 3scale-amp2/system-rhel8 Red Hat AMQ Broker 7 amq-broker-bin.zip 7.14.1.CR2, amq-broker-maven-repository.zip 7.14.1.CR3
    not affected: vulnerable code not present
  • Red Hat Ansible Automation Platform 2 automation-platform-ui 2.6.13-1.el9ap, automation-gateway 2.5.20260824-1.el8ap
    not affected: component not present
  • Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25/hub-rhel8 1789606395, ansible-automation-platform-25/gateway-rhel8 1789605572, ansible-automation-platform-25/hub-web-rhel8 1789690469, ansible-automation-platform-25/receptor-rhel8 1789590330, ansible-automation-platform-25/controller-rhel8 1789607021, ansible-automation-platform-25/de-minimal-rhel8 1789634812, +20 more Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/hub-rhel9 1789611274, ansible-automation-platform-26/gateway-rhel9 1789666472, ansible-automation-platform-26/hub-web-rhel9 1789615881, ansible-automation-platform-26/receptor-rhel9 1789610120, ansible-automation-platform-26/mcp-tools-rhel9 1789609282, ansible-automation-platform-26/controller-rhel9 1789673739, +24 more
    not affected: vulnerable code not present
  • Red Hat build of Apache Camel for Spring Boot 4 rhaf-camel-spring-boot-maven-repository.zip 4.18.1.CS4, rhaf-camel-for-springboot-maven-repository.zip 3.5.16.CS2
    not affected: component not present
  • Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 8 pcs, grafana, pcs-snmp, grafana-loki, grafana-mssql, grafana-mysql, +12 more
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 9 pcs, grafana, pcs-snmp, dotnet6.0, dotnet7.0, dotnet-host, +22 more
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 10 pcs 0.12.0-3.el10_0.5, grafana 10.2.6-28.el10_2.4 Red Hat Hardened Images grafana12.4 12.4.9-0.5.hum1, grafana13.1 13.1.3-0.4.hum1, grafana13.2 13.2.0-0.1.4.hum1, prometheus3.13 3.13.2-0.2.hum1
    not affected: component not present
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9 Red Hat OpenShift AI 3.4 rhoai/odh-cli-rhel9 1792722177, rhoai/rhai-cli-rhel9 1792722177, rhoai/odh-automl-rhel9 1792697253, rhoai/odh-mlflow-rhel9 1793002327, rhoai/odh-autorag-rhel9 1793265800, rhoai/odh-trainer-rhel9 1792817113, +99 more
    not affected: vulnerable code not present
  • Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift4/ose-console-rhel9 Red Hat Quay 3 quay/quay-rhel8, quay/quay-rhel9
    not affected: vulnerable code not in execute path

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
2 mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/advisories/GHSA-ppp5-5v6c-4jwp referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/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

Affected products

  • digitalbazaar forge

Classification

Weakness
  • CWE-347 Improper Verification of Cryptographic Signature

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.