CVE-2026-28454
OpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhook
- State
- Published
- Severity
- 8.2 High
- Published
- Mar 5, 2026
- Updated
- Mar 9, 2026
- Reserved
- Feb 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-345 Insufficient Verification of Data Authenticity
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
- GitHub Security Advisory (GHSA-fhvm-j76f-qmjv)vendor-advisory
- Patch Commitpatch
- Hardening Commit #1patch
- Hardening Commit #2patch
- Hardening Commit #3patch
- VulnCheck Advisory: OpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhookthird-party-advisory
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