CVE-2026-41340: OpenClaw < 2026.3.31 - Authentication Boundary Bypass via Telegram Legacy allowFrom Migration

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-23 · updated 2026-06-17
Weakness: CWE-372

Description

OpenClaw before 2026.3.31 contains an authentication boundary vulnerability where Telegram legacy allowFrom migration incorrectly fans default-account trust into all named accounts. Attackers can exploit this trust propagation to bypass authentication controls and gain unauthorized access to named accounts.

Affected products

OpenClaw: before 2026.3.31 — fixed in 2026.3.31

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.31. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/d8c68c8d4265ea6fa5e8c5e056534c351bddef37
https://github.com/openclaw/openclaw/security/advisories/GHSA-f693-58pc-2gfr
https://www.vulncheck.com/advisories/openclaw-authentication-boundary-bypass-via-telegram-legacy-allowfrom-migration

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