Vulnerability in Openclaw
CVE-2026-53861
OpenClaw before 2026.5.6 contains an allowlist bypass vulnerability in the macOS Swift exec feature that misses combined POSIX inline-command flags. Attackers can execute shell content outside the intended allowlist check by using combined flag forms, potentially allowing unauthorized command execution depending on operator configuration.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (36.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.005 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.5.6
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-c226-q6fx-6j6c (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-combined-posix-inlin… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-53861?
- CVE-2026-53861 is a medium-severity vulnerability in Openclaw, classified under Incomplete List of Disallowed Inputs. CVSS score: 6.6/10. Published 2026-06-16.
- How severe is CVE-2026-53861?
- Medium severity. CVSS v3 base score is 6.6 out of 10.