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Fencer Intel
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 2mo ago modified last mo. 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.

Is CVE-2026-85393 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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
2mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-09).

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 Intel 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.