Vulnerability details

CVE-2026-100540

OpenClaw feishu

OpenClaw Feishu before 2026.8.1 Authentication Bypass via Disabled Account

CVSS 4.0

7.6High

Official description

OpenClaw Feishu before 2026.8.1 fails to validate whether a configured default account is disabled before selecting it for model tool operations. Attackers can exploit multi-account setups where a disabled default account retains credentials to read or modify Feishu resources through a revoked identity.

CVSS scores

Score	Version	Source	Vector
7.6High	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`
6.8Medium	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
OpenClaw	feishu	v < 2026.8.1	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/openclaw/openclaw/security/advisories/GHSA-h2qg-fxpv-82v6 vendor-advisory
https://www.vulncheck.com/advisories/openclaw-feishu-before-2026.8.1-authentication-bypass-via-disabled-account third-party-advisory

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Details

Published: 2026-09-26
Last updated: 2026-10-08
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.23%

Probability of exploitation in 30 days

14.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-863
Incorrect Authorization