Vulnerability · Published Apr 23, 2026 · Assigned by VulnCheck

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

Medium 6.5

In plain English

A medium-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 79.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.3.31	GHSA-f693-58pc-2gfr

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.3.31

Weakness: CWE-372 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-f693-58pc-2gfr) vendor-advisory
Patch Commit patch
VulnCheck Advisory: OpenClaw < 2026.3.31 - Authentication Boundary Bypass via Telegram Legacy allowFrom Migration third-party-advisory