CVE-2022-24771 is a high-severity (CVSS 7.5) CWE-347 vulnerability in node-forge. A fix is available for node-forge — see the affected versions and patch details below.
Improper Verification of Cryptographic Signature in node-forge
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2022-24771.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2022-24771 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
node-forgenpmDescription
Impact
RSA PKCS#1 v1.5 signature verification code is lenient in checking the digest algorithm structure. This can allow a crafted structure that steals padding bytes and uses unchecked portion of the PKCS#1 encoded message to forge a signature when a low public exponent is being used.
Patches
The issue has been addressed in node-forge 1.3.0.
References
For more information, please see "Bleichenbacher's RSA signature forgery based on implementation error" by Hal Finney.
For more information
If you have any questions or comments about this advisory:
- Open an issue in forge
- Email us at example email address
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | node-forge | all versions | 1.3.0npm install node-forge@1.3.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for node-forge, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update node-forge to 1.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-24771 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2022-24771 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2022-24771. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
This flaw affects the DigestAlgorithm structure.
| Product | Fixed in | Advisory |
|---|---|---|
| OpenShift Service Mesh 2.1 | openshift-service-mesh/kiali-rhel8:1.36.9-1 | RHSA-2022:1739 |
| Red Hat OpenShift Data Foundation 4.11 on RHEL8 | odf4/mcg-core-rhel8:v4.11.0-30 | RHSA-2022:6156 |
| RHINT Service Registry 2.3.0 GA | node-forge | RHSA-2022:6835 |
| RHPAM 7.13.1 async | node-forge | RHSA-2022:6813 |
Frequently Asked Questions
Is CVE-2022-24771 in your dependencies?
O3 Security finds CVE-2022-24771 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.