CVE-2026-40032

Description

UAC (Unix-like Artifacts Collector) before 3.3.0-rc1 contains a command injection vulnerability in the placeholder substitution and command execution pipeline where the _run_command() function passes constructed command strings directly to eval without proper sanitization. Attackers can inject shell metacharacters or command substitutions through attacker-controlled inputs including %line% values from foreach iterators and %user% / %user_home% values derived from system files to achieve arbitrary command execution with the privileges of the UAC process.

CVSS Vector

References

• https://github.com/tclahr/uac/commit/50ace60e172e38feb78347bdf579311c23eff078
• https://github.com/tclahr/uac/commit/cb95d7166cd47908e1189d9669e43f9a6d3d707f
• https://github.com/tclahr/uac/commit/d0fca5e36d8d6a33a4404f0f6fe92b0424544589
• https://github.com/tclahr/uac/issues/429
• https://github.com/tclahr/uac/pull/443
• https://mobasi.ai/sentinel
• https://www.vulncheck.com/advisories/uac-rc1-command-injection-via-placeholder-substitution