High severity · published Jun 11, 2026
CVE-2026-53806
OpenClaw < 2026.5.12 - Shell Option Parsing Bypass in Exec Revalidation
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.5.12 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53806
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53806
Mitigation
https://github.com/openclaw/openclaw/security/advisories/GHSA-vxx3-6hc9-7cc3
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-shell-option-parsing-bypass-in-exec-revalidation
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