Medium severity5.4NVD Advisory· Published Apr 28, 2026· Updated Apr 30, 2026
CVE-2026-42421
CVE-2026-42421
Description
OpenClaw before 2026.4.8 contains a session management vulnerability where existing WebSocket sessions survive shared gateway token rotation. Attackers can maintain unauthorized access to WebSocket connections after token rotation by exploiting the failure to disconnect existing shared-token sessions.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | < 2026.4.8 | 2026.4.8 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5nvdPatch
- github.com/advisories/GHSA-5h3f-885m-v22wghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22wnvdVendor AdvisoryWEB
- www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotationnvdThird Party Advisory
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