CVE-2026-28460

OpenClaw < 2026.2.22 - Allowlist Bypass via Shell Line-Continuation Command Substitution in system.run

State: Published
Severity: 6.0 Medium
Published: Mar 19, 2026
Updated: Jun 23, 2026
Reserved: Feb 27, 2026

Description

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run that allows attackers to execute non-allowlisted commands by splitting command substitution using shell line-continuation characters. Attackers can bypass security analysis by injecting $\\ followed by a newline and opening parenthesis inside double quotes, causing the shell to fold the line continuation into executable command substitution that circumvents approval boundaries.

Scores

CVSS	Score	Vector	Source
4.0	6.0 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	7.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L	VulnCheck

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)

Affected Products

Product	Versions
OpenClawOpenClaw	before 2026.2.22Affected

References

GitHub Security Advisory (GHSA-9868-vxmx-w862)vendor-advisory
Patch Commitpatch
VulnCheck Advisory: OpenClaw < 2026.2.22 - Allowlist Bypass via Shell Line-Continuation Command Substitution in system.runthird-party-advisory

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