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Description

OpenClaw before 2026.5.12 contains a shell option parsing vulnerability that allows combined POSIX shell flags to bypass exec revalidation checks. Attackers can exploit this by using combined shell options to execute inline shell content without intended allowlist validation, potentially enabling unauthorized command execution when the affected feature is enabled.

PUBLISHED Reserved 2026-06-10 | Published 2026-06-11 | Updated 2026-06-13 | Assigner VulnCheck




HIGH: 7.7CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Time-of-check Time-of-use (TOCTOU) Race Condition

Product status

Default status
unaffected

Any version before 2026.5.12
affected

2026.5.12 (semver)
unaffected

Credits

Edward-x (@YLChen-007) reporter

References

github.com/...enclaw/security/advisories/GHSA-vxx3-6hc9-7cc3 (GitHub Security Advisory (GHSA-vxx3-6hc9-7cc3)) vendor-advisory patch

www.vulncheck.com/...ion-parsing-bypass-in-exec-revalidation third-party-advisory

cve.org (CVE-2026-53806)

nvd.nist.gov (CVE-2026-53806)

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