GHSA-434g-2637-qmqr is a medium-severity (CVSS 5.3) CWE-347 vulnerability in elliptic. A fix is available for elliptic — see the affected versions and patch details below.
Elliptic's verify function omits uniqueness validation
Exploitation Status
No confirmed exploitation observed yet
- 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 GHSA-434g-2637-qmqr.
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
GHSA-434g-2637-qmqr 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 378,567 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.
ellipticnpmDescription
The Elliptic package 6.5.5 for Node.js for EDDSA implementation does not perform the required check if the signature proof(s) is within the bounds of the order n of the base point of the elliptic curve, leading to signature malleability. Namely, the verify function in lib/elliptic/eddsa/index.js omits sig.S().gte(sig.eddsa.curve.n) || sig.S().isNeg() validation.
This vulnerability could have a security-relevant impact if an application relies on the uniqueness of a signature.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | elliptic | all versions | 6.5.6npm install elliptic@6.5.6 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for elliptic, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update elliptic to 6.5.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-434g-2637-qmqr 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 GHSA-434g-2637-qmqr can be triaged on real exposure rather than presence alone.
Tailored to GHSA-434g-2637-qmqr. 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.
Thunderbird is not supported in Red Hat Enterprise Linux 7 ELS.
| Product | Fixed in | Advisory |
|---|---|---|
| multicluster engine for Kubernetes 2.4 for RHEL 8 | multicluster-engine/addon-manager-rhel8:v2.4.6-12 | RHSA-2024:8533 |
| multicluster engine for Kubernetes 2.5 for RHEL 9 | multicluster-engine/console-mce-rhel9:v2.5.7-3 | RHSA-2024:6738 |
| Red Hat Advanced Cluster Management for Kubernetes 2.10 for RHEL 9 | rhacm2/console-rhel9:v2.10.6-3 | RHSA-2024:6779 |
| Red Hat Advanced Cluster Management for Kubernetes 2.11 for RHEL 9 | rhacm2/acm-cluster-permission-rhel9:v2.11.3-4 | RHSA-2024:7994 |
| Red Hat Advanced Cluster Management for Kubernetes 2.12 for RHEL 9 | rhacm2/acm-cli-rhel9:v2.12.0-17 | RHSA-2024:8974 |
| Red Hat Advanced Cluster Management for Kubernetes 2.9 for RHEL 8 | rhacm2/acm-cluster-permission-rhel8:v2.9.5-9 | RHSA-2024:8546 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | grafana-0:6.3.6-6.el8_2 | RHSA-2024:8507 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | grafana-0:7.3.6-8.el8_4 | RHSA-2024:8351 |
Frequently Asked Questions
Is GHSA-434g-2637-qmqr in your dependencies?
O3 Security finds GHSA-434g-2637-qmqr across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.