by Kastro
Paper/Archive/CVE-2026-53861

CVE-2026-53861

OpenClaw OpenClaw — OpenClaw < 2026.5.6 - Allowlist Bypass via Combined POSIX Inline Flags on macOS

EPSS 0.2%CVSS 9.8
critical.is priorityof 100
33
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 16.3.163 × 203.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
OpenClaw< 2026.5.62026.5.6CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)6.6CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
VulnCheck (CNA)5.3CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorygithub.com/openclaw/openclaw/security/advisories/GHSA-c226-q6fx-6j6cwriteupvulncheck.com/advisories/openclaw-allowlist-bypass-via-combined-posix-inline-flags-on-macos