CVE-2026-100553

MEDIUM CVSS 4.0: 5.3 EPSS 0.21%
Updated Sep 29, 2026
Openclaw
Parameter Value
CVSS 5.3 (MEDIUM)
Affected Versions 2026.6.9 — 2026.8.1
Fixed In 2026.8.1
Type CWE-863 (Incorrect Authorization)
Vendor Openclaw
Public PoC No

OpenClaw versions >= 2026.6.9 and < 2026.8.1 do not declare the native chatId parameter as a delivery target in the Feishu unpin feature, so unpin requests can bypass the shared same-provider cross-context target check. When tools.message.crossContext.allowWithinProvider is disabled, an admitted (authenticated) sender can remove a pin from another Feishu group that the sender and the configured account are otherwise permitted to access, bypassing the intended cross-context message mutation policy. Feishu membership and group authorization still apply, and the demonstrated impact is limited to message mutation (pin removal).

The issue is fixed in 2026.8.1.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Openclaw Openclaw
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*
2026.6.9 2026.8.1