CVE-2026-100553 OpenClaw 2026.6.9 before 2026.8.1 Cross-Context Policy Bypass via Feishu unpin
Authenticated users can bypass cross-context policy restrictions to remove pins from other Feishu groups when specific security settings are disabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-100553?
CVE-2026-100553 is a medium-severity vulnerability in OpenClaw, published on 26 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-100553?
How do I fix CVE-2026-100553?
Upgrade to a fixed version.
Is CVE-2026-100553 being exploited?
There is no known exploitation of CVE-2026-100553 in the wild and no public exploit code.
Sources
Also known as GHSA-9w3x-7vmw-xp4x, GHSA-h9jh-75j7-7hhx, MINI-hj4h-qg3v-v39h.