Auth bypass in Openclaw Feishu
CVE-2026-100582
OpenClaw channel plugins (@openclaw/msteams, @openclaw/feishu, @openclaw/matrix, and @openclaw/googlechat) before 2026.8.1 do not enforce the configured channel read allowlist for caller-supplied explicit read targets in message, reaction, pin, member, and related metadata read actions. A lower-trust sender or a steered agent with access to a channel read action can therefore retrieve content or metadata from channels or rooms excluded by the operator's read policy; the practical impact depends on the permissions held by the connected bot account. The issue is fixed in 2026.8.1.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-g7fw-3gjp-g5hf) (vendor-advisory)
- VulnCheck Advisory: OpenClaw msteams before 2026.8.1 Channel Read Allowlist Bypass (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100582?
- CVE-2026-100582 is a medium-severity vulnerability in Openclaw Feishu, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-26.
- How severe is CVE-2026-100582?
- Medium severity. CVSS v3 base score is 6.5 out of 10.