CVE-2026-27004CWE-209CWE-346

OpenClaw session tool visibility hardening and Telegram webhook secret fallback

Medium · published February 19, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
2.1
In the wild
Unconfirmed
What it is

OpenClaw is a personal AI assistant. Prior to version 2026.2.15, in some shared-agent deployments, OpenClaw session tools (`sessions_list`, `sessions_history`, `sessions_send`) allowed broader session targeting than some operators intended. This is primarily a configuration/visibility-scoping issue in multi-user environments where peers are not equally trusted. In Telegram webhook mode, monitor startup also did not fall back to per-account `webhookSecret` when only the account-level secret was configured. In shared-agent, multi-user, less-trusted environments: session-tool access could expose transcript content across peer sessions. In single-agent or trusted environments, practical impact is limited. In Telegram webhook mode, account-level secret wiring could be missed unless an explicit monitor webhook secret override was provided. Version 2026.2.15 fixes the issue.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00126 · 2.1th percentile
Weaknesses
CWE-209 · Generation of Error Message Containing Sensitive Information; CWE-346 · Origin Validation Error
Published
2026-02-19T23:18Z
EPSS history
Timeline
  • 19 FEB 23:18Z
    OpenClaw session tool visibility hardening and Telegram webhook secret fallback
    cvelistv5