PatchSiren cyber security CVE debrief
CVE-2026-53829 OpenClaw CVE debrief
CVE-2026-53829 is a HIGH severity vulnerability in OpenClaw before 2026.5.18. The approval display truncation vulnerability allows authenticated users to hide command suffixes from approvers. Attackers can submit oversized exec commands with benign prefixes and malicious suffixes to execute unauthorized operations after approval.
- Vendor
- OpenClaw
- Product
- Unknown
- CVSS
- HIGH 8.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-12
- Original CVE updated
- 2026-06-12
- Advisory published
- 2026-06-12
- Advisory updated
- 2026-06-12
Who should care
Users of OpenClaw before version 2026.5.18 should be aware of this vulnerability and take steps to mitigate it.
Technical summary
The vulnerability has a CVSS score of 8.5 and is classified as HIGH severity. The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.
Defensive priority
HIGH
Recommended defensive actions
- Update OpenClaw to version 2026.5.18 or later.
- Review and monitor exec commands for suspicious activity.
Evidence notes
The vulnerability was reported by Vulncheck and is tracked under CVE-2026-53829.
Official resources
CVE-2026-53829 was published on 2026-06-12T22:16:54.347Z and has not been modified since then.