Cross-Context Policy Bypass in OpenClaw by Feishu Unpin Feature
CVE-2026-100553

5.3MEDIUM

Key Information:

Vendor

Openclaw

Status
Openclaw
Vendor
CVE Published:
26 September 2026

What is CVE-2026-100553?

OpenClaw's Feishu unpin feature has a vulnerability in versions 2026.6.9 to 2026.8.1 where the native chatId parameter is not adequately declared as a delivery target. This oversight allows authenticated users to bypass the intended cross-context message mutation policy, enabling them to remove pins from Feishu groups they have access to. Although group authorization is still enforced, this flaw poses a risk of unintended message mutations within shared contexts. The vulnerability has been resolved in version 2026.8.1.

Affected Version(s)

OpenClaw 2026.6.9 < 2026.8.1

OpenClaw 2026.8.1

References

https://github.com/openclaw/openclaw/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/openclaw-2026.6.9-be...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

andrewCantina
.