PT-2026-35800 · Openclaw · Openclaw

Kexna · Published 2026-04-09 · Updated 2026-04-29 · CVE-2026-42421

Positive Technologies (AI Summary)

CVSS v4.0

5.9

Medium

Base vector

AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.4.8

Description A session management issue exists where WebSocket sessions persist after shared gateway token rotation. This allows attackers to maintain unauthorized access to WebSocket connections because the system fails to disconnect sessions associated with the rotated shared token.

Recommendations Update to version 2026.4.8.

Fix

Insufficient Session Expiration

Weakness Enumeration

CWE-613

Related Identifiers

CVE-2026-42421

GHSA-5H3F-885M-V22W

Affected Products

Openclaw

References · 8

• https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5 · Patch
• https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42421 · Security Note
• https://osv.dev/vulnerability/GHSA-5h3f-885m-v22w · Vendor Advisory
• https://github.com/openclaw/openclaw · Note
• https://twitter.com/VulmonFeeds/status/2049298899270013405 · Twitter Post
• https://vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotation · Note
• https://twitter.com/CVEnew/status/2049227502371914058 · Twitter Post