Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck

CVE-2026-100553OpenClaw 2026.6.9 before 2026.8.1 Cross-Context Policy Bypass via Feishu unpin

Medium 4.3

In plain English

A medium-severity incorrect authorization in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 88.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	2026.6.9 – before 2026.8.1

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-h9jh-75j7-7hhx) vendor-advisory
VulnCheck Advisory: OpenClaw 2026.6.9 before 2026.8.1 Cross-Context Policy Bypass via Feishu unpin third-party-advisory