CVE-2026-28454
OpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhook
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-345 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Mar 5, 2026 |
| Last Updated | Mar 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
OpenClaw / OpenClaw
0 < 2026.2.2
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjv github.com: https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69314d github.com: https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386b670 github.com: https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930 github.com: https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace932f09 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-unauthenticated-telegram-webhook
Credits
🔍 Petr Simecek (@simecek) Stanislav Fort, Aisle Research, www.aisle.com