CVE-2026-53861 json
OpenClaw < 2026.5.6 - Allowlist Bypass via Combined POSIX Inline Flags on macOS
published 2026-06-16 4 mo ago modified 2026-06-18 4 mo ago also GHSA-c226-q6fx-6j6c , EUVD-2026-37163
- cvss
- 6.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm openclaw 2026.5.6
- OpenClaw OpenClaw 2026.5.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.6 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/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 |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 6.6 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.5.6 |
2026.5.6 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-184 Incomplete List of Disallowed Inputs
References
-
github.com
/openclaw/openclaw/security/advisories/GHSA-c226-q6fx-6j6c
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/openclaw-allowlist-bypass-via-combined-posix-inline-flags-on-macos
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-53861
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-53861
- GitHub Advisory GHSA-c226-q6fx-6j6c
- NVD CVE-2026-53861
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