Information disclosure in Openclaw
CVE-2026-27004
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Openclaw — versions < 2026.2.15
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-6hf3-mhgc-cm65 (Mitigation, Vendor Advisory)
- github.com/openclaw/openclaw/commit/c6c53437f7da033b94a01d492e904974e7bda74c (Patch)
Frequently asked questions
- What is CVE-2026-27004?
- CVE-2026-27004 is a medium-severity vulnerability in Openclaw, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 5.5/10. Published 2026-02-20.
- How severe is CVE-2026-27004?
- Medium severity. CVSS v3 base score is 5.5 out of 10.