PatchSiren cyber security CVE debrief

CVE-2026-53854 OpenClaw CVE debrief

CVE-2026-53854 is a medium-severity privilege escalation vulnerability in OpenClaw before version 2026.4.25. The vulnerability allows senders to inherit the 'ownerAllowFrom' wildcard state across channel boundaries, potentially bypassing access controls. Attackers can exploit this by sending commands on affected internal or webchat paths to execute owner-style command behavior outside intended channel scope.

Vendor: OpenClaw
Product: Unknown
CVSS: MEDIUM 6
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-16
Original CVE updated: 2026-06-18
Advisory published: 2026-06-16
Advisory updated: 2026-06-18

Who should care

Users of OpenClaw before version 2026.4.25 should apply the patch to prevent potential privilege escalation attacks.

Technical summary

The vulnerability is caused by a flaw in the internal and webchat command authentication mechanism in OpenClaw. This flaw allows senders to inherit the 'ownerAllowFrom' wildcard state across channel boundaries, potentially bypassing access controls.

Defensive priority

MEDIUM

Recommended defensive actions

Apply the patch to update OpenClaw to version 2026.4.25 or later.
Review and restrict access controls for internal and webchat commands.

Evidence notes

The CVE-2026-53854 vulnerability was reported by Vulncheck and is tracked on the NVD and CVE websites.

Sources and references

Verified primary and authoritative sources

CVE-2026-53854 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-53854

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-53854 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53854

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Source reference
Unverified legacy reference

URL: https://github.com/openclaw/openclaw/security/advisories/GHSA-4hpg-mp64-x7xq

[email protected]
Source reference
Unverified legacy reference

URL: https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-ownerallowfrom-wildcard-inheritance-in-internal-webchat-commands

[email protected]

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.