Vulnerability Description
OpenClaw versions prior to 2026.2.2 fail to validate webhook secrets in Telegram webhook mode (must be enabled), allowing unauthenticated HTTP POST requests to the webhook endpoint that trust attacker-controlled JSON payloads. Remote attackers can forge Telegram updates by spoofing message.from.id and chat.id fields to bypass sender allowlists and execute privileged bot commands.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.2.2 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15fPatch
- https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386Patch
- https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace93Patch
- https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjvMitigationVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-unauthentThird Party Advisory
FAQ
What is CVE-2026-28454?
CVE-2026-28454 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenClaw versions prior to 2026.2.2 fail to validate webhook secrets in Telegram webhook mode (must be enabled), allowing unauthenticated HTTP POST requests to the webhook endpoint that trust attacker...
How severe is CVE-2026-28454?
CVE-2026-28454 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28454?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.