CVE-2026-28454
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
3Description
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.
Analysis
Openclaw versions up to 2026.2.2 is affected by insufficient verification of data authenticity (CVSS 7.5).
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Remediation
Within 24 hours: Inventory all Openclaw instances and confirm affected versions (up to 2026.2.2). Within 7 days: Test and deploy available patch to non-production environments; establish deployment schedule for production systems. …
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External POC / Exploit Code
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GHSA-fhvm-j76f-qmjv