๐Ÿ” CVE Alert

CVE-2026-41451

HIGH 7.8

UAC < 3.3.0 Command Injection via User Substitution in parse_artifact.sh

CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th

UAC (Unix-like Artifacts Collector) versions prior to 3.3.0 contain a command injection vulnerability in the user substitution logic within parse_artifact.sh where usernames and home directories from /etc/passwd are substituted directly into command strings without escaping before execution via eval. Attackers can inject shell metacharacters such as command substitution syntax or semicolons through crafted usernames or home directory paths in /etc/passwd entries to execute arbitrary commands on the analyst's host system.

CWE CWE-78
Vendor tclahr
Product uac
Published Aug 21, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

tclahr / uac
0 < 3.3.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/tclahr/uac/pull/443 github.com: https://github.com/tclahr/uac/commit/2cc367d8ead388f05abd3cfb8af537788a124e72 vulncheck.com: https://www.vulncheck.com/advisories/uac-command-injection-via-user-substitution-in-parse-artifact-sh

Credits

Mobasi Security Team