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HIGH severity

GHSA-vw3h-q6xq-jjm5 openclaw

HIGHFix: openclaw/openclaw#63890

GHSA-vw3h-q6xq-jjm5 is a high-severity (CVSS 7.5) CWE-770 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

OpenClaw: Voice-call realtime WebSocket accepted oversized frames

Also known asCVE-2026-42437
Published
Apr 17, 2026
Updated
Jun 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 18, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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 GHSA-vw3h-q6xq-jjm5.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs36th percentile — riskier than 36% of all scored CVEsHighest risk

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-vw3h-q6xq-jjm5 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 377,166 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

1 pkg affected

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.

133other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
openclawnpm
4.1Mdownloads / week

Description

Summary

Voice-call realtime WebSocket accepted oversized frames.

Affected Packages / Versions

  • Package: openclaw
  • Ecosystem: npm
  • Affected versions: >= 2026.4.9 < 2026.4.10
  • Patched versions: >= 2026.4.10

Impact

The voice-call realtime WebSocket path could accept oversized frames, creating a remote availability risk for deployments exposing that webhook path.

Technical Details

The fix rejects oversized realtime WebSocket frames before processing them.

Fix

The issue was fixed in #63890. The first stable tag containing the fix is v2026.4.10, and [email protected] includes the fix.

Fix Commit(s)

  • afadb7dae6738819ad9c7d2597ace0516957d20e
  • PR: #63890

Release Process Note

Users should upgrade to openclaw 2026.4.10 or newer. The latest npm release, 2026.4.14, already includes the fix.

Reporters

Thanks to G0odUser from ADLab of VenusTech Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmopenclaw2026.4.9&&< 2026.4.102026.4.10npm install openclaw@2026.4.10

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update openclaw to 2026.4.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vw3h-q6xq-jjm5 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-vw3h-q6xq-jjm5 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-vw3h-q6xq-jjm5. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Summary Voice-call realtime WebSocket accepted oversized frames. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `>= 2026.4.9 < 2026.4.10` - Patched versions: `>= 2026.4.10` ## Impact The voice-call realtime WebSocket path could accept oversized frames, creating a remote availability risk for deployments exposing that webhook path. ## Technical Details The fix rejects oversized realtime WebSocket frames before processing them. ## Fix The issue was fixed in #63890. The first stable tag containing the fix is `v2026.4.10`, and `openclaw@2026
O3 Security · Impact-Aware SCA

Is GHSA-vw3h-q6xq-jjm5 in your dependencies?

O3 Security finds GHSA-vw3h-q6xq-jjm5 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-vw3h-q6xq-jjm5: openclaw (High 7.5) | O3 Security