Detections
Analytics

CVE-2026-28454

high

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.

References

https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-unauthenticated-telegram-webhook

https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjv

https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69314d

https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace932f09

https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386b670

https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930

Details

Source: Mitre, NVD

Published: 2026-03-05

Updated: 2026-03-09

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 8.2

Vector: 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

Severity: High

EPSS

EPSS: 0.00028