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PatchSiren cyber security CVE debrief

CVE-2026-32921 OpenClaw CVE debrief

CVE-2026-32921 is an approval bypass vulnerability in OpenClaw before version 2026.3.8. The vulnerability exists in the system.run function where mutable script operands are not bound across approval and execution phases. This allows attackers to obtain approval for script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape.

Vendor
OpenClaw
Product
Unknown
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-03-31
Original CVE updated
2026-07-25
Advisory published
2026-03-31
Advisory updated
2026-07-25

Who should care

Users of OpenClaw before version 2026.3.8 should be aware of this vulnerability and take steps to mitigate it. This vulnerability has a CVSS score of 5.3 and a severity of MEDIUM. Affected operators should review their deployments for OpenClaw versions prior to 2026.3.8 and assess potential impacts on their platforms. Vulnerability management and security teams should prioritize patching or applying mitigations based on the vendor's advisory.

Technical summary

The vulnerability exists in the system.run function of OpenClaw, where mutable script operands are not bound across approval and execution phases. This allows an attacker to obtain approval for a script execution, modify the approved script file before execution, and execute different content while maintaining the same approved command shape. The CVSS vector for this vulnerability is CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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

Medium priority should be given to patching this vulnerability, as it has a CVSS score of 5.3 and a severity of MEDIUM.

Recommended defensive actions

  • Apply the patch from https://github.com/openclaw/openclaw/commit/c76d29208bf6a7f058d2cf582519d28069e42240
  • Apply the patch from https://github.com/openclaw/openclaw/commit/cf3a479bd1204f62eef7dd82b4aa328749ae6c91
  • Refer to the vendor advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-8g75-q649-6pv6
  • Refer to the third-party advisory at https://www.vulncheck.com/advisories/openclaw-script-content-modification-via-mutable-operand-binding-in-system-run
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-03-31T12:16:28.920Z and was last modified on 2026-07-25T10:10:00.167Z. The NVD entry is currently Analyzed. Evidence is limited to public CVE and NVD information. Defenders should verify OpenClaw deployments and review system.run usage for potential exposure.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-03-31T12:16:28.920Z and has not been modified since then. The NVD entry is currently Analyzed.