CVE-2026-53861 | OpenClaw before 2026.5.6 contains an allowlist bypass vulner… | CVSS 6.6 MEDIUM

Description

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.

Metadata

CVE ID: CVE-2026-53861
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-10 21:22 UTC
Published: 2026-06-16 18:05 UTC
Last updated: 2026-06-18 03:56 UTC
Primary CWE: CWE-184
Incomplete List of Disallowed Inputs
Vendor / Product: OpenClaw / OpenClaw
Sources: cve.org · NVD

Severity & Metrics

6.6 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
OpenClaw	OpenClaw	—	0 < 2026.5.6, 2026.5.6

Weakness (CWE)

CWE	Source	Description
CWE-184	cna	Incomplete List of Disallowed Inputs

CVSS scores (2)

Score	Severity	Version	Source	Vector
6.6	MEDIUM	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
5.3	MEDIUM	4.0	cna	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

References (2)

GitHub Security Advisory (GHSA-c226-q6fx-6j6c) https://github.com/openclaw/openclaw/security/advisories/GHSA-c226-q6fx-6j6c
VulnCheck Advisory: OpenClaw < 2026.5.6 - Allowlist Bypass via Combined POSIX Inline Flags on macOS https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-combined-posix-inline-flags-on-macos