CVE-2026-100540: Incorrect Authorization in openclaw feishu
CVE-2026-100540 is an authorization vulnerability in OpenClaw Feishu versions before 2026.8.1. The software fails to verify if a configured default account is disabled before using it for model tool operations. This flaw allows attackers in multi-account environments to exploit disabled default accounts that still retain credentials, enabling unauthorized reading or modification of Feishu resources through a revoked identity.
AI Analysis
Technical Summary
OpenClaw Feishu prior to version 2026.8.1 does not properly validate whether a configured default account is disabled before selecting it for model tool operations. In multi-account setups, an attacker can leverage a disabled default account that still holds credentials to access or modify Feishu resources despite the account being revoked. This represents an incorrect authorization issue that could lead to unauthorized resource access.
Potential Impact
Attackers with access to multi-account configurations can exploit this vulnerability to read or modify Feishu resources using credentials from a disabled default account. This could result in unauthorized data access or manipulation within the affected system. The CVSS 4.0 base score is 7.6, indicating a high severity impact with network attack vector, high impact on confidentiality and integrity, and requiring low privileges with partial user interaction.
Mitigation Recommendations
A fix is available in OpenClaw Feishu version 2026.8.1. Users should upgrade to version 2026.8.1 or later to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
CVE-2026-100540: Incorrect Authorization in openclaw feishu
Description
CVE-2026-100540 is an authorization vulnerability in OpenClaw Feishu versions before 2026.8.1. The software fails to verify if a configured default account is disabled before using it for model tool operations. This flaw allows attackers in multi-account environments to exploit disabled default accounts that still retain credentials, enabling unauthorized reading or modification of Feishu resources through a revoked identity.
CVSS v4.0
Score 7.6high
Affected software
openclaw
feishu
pkg:github/openclaw/feishuRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenClaw Feishu prior to version 2026.8.1 does not properly validate whether a configured default account is disabled before selecting it for model tool operations. In multi-account setups, an attacker can leverage a disabled default account that still holds credentials to access or modify Feishu resources despite the account being revoked. This represents an incorrect authorization issue that could lead to unauthorized resource access.
Potential Impact
Attackers with access to multi-account configurations can exploit this vulnerability to read or modify Feishu resources using credentials from a disabled default account. This could result in unauthorized data access or manipulation within the affected system. The CVSS 4.0 base score is 7.6, indicating a high severity impact with network attack vector, high impact on confidentiality and integrity, and requiring low privileges with partial user interaction.
Mitigation Recommendations
A fix is available in OpenClaw Feishu version 2026.8.1. Users should upgrade to version 2026.8.1 or later to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-26T01:01:36.095Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab72eeef7a7c54106c273be
Added to database: 09/26/2026, 02:33:18 UTC
Last enriched: 09/26/2026, 02:47:56 UTC
Last updated: 09/26/2026, 03:41:45 UTC
Views: 7
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