Vulnerability in Openclaw
CVE-2026-41340
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Openclaw — versions 0, 2026.3.31
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-f693-58pc-2gfr (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/d8c68c8d4265ea6fa5e8c5e056534c351bddef37 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-authentication-boundary-bypass-via-telegr… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41340?
- CVE-2026-41340 is a medium-severity vulnerability in Openclaw, classified under CWE-372. CVSS score: 6.5/10. Published 2026-04-23.
- How severe is CVE-2026-41340?
- Medium severity. CVSS v3 base score is 6.5 out of 10.