CVE-2026-100553CWE-863broken-access-control

CVE-2026-100553

Medium · published September 26, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
11.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00215 · 11.3th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-26T07:17Z
References (2)
EPSS history
Timeline
  • 27 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 26 SEP 02:18Z
    OpenClaw 2026.6.9 before 2026.8.1 Cross-Context Policy Bypass via Feishu unpin
    cvelistv5