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Vulnerability record · CVE-2026-16493 · published 21 July 2026

CVE-2026-16493: Argument injection vulnerability

A flaw was found in ansible-core. The _extract_collection_from_git() function in ansible-core's concrete_artifact_manager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted collection source URI containing git argument injection payloads can achieve arbitrary command execution when a user runs 'ansible-galaxy collection install' with the malicious source. This is an incomplete fix for CVE-2026-11332, which hardened the role install path but missed the equivalent collection install code path.

7.8 CVSS 3.1 High EPSS 0.17% · top 93.8% CWE-88 · Argument injection Awaiting Analysis
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
4 Sep 2026Last modified by NVD

Description

A flaw was found in ansible-core. The _extract_collection_from_git() function in ansible-core's concrete_artifact_manager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted collection source URI containing git argument injection payloads can achieve arbitrary command execution when a user runs 'ansible-galaxy collection install' with the malicious source. This is an incomplete fix for CVE-2026-11332, which hardened the role install path but missed the equivalent collection install code path.

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

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:63385
https://access.redhat.com/errata/RHSA-2026:63386
https://access.redhat.com/errata/RHSA-2026:63387
https://access.redhat.com/security/cve/CVE-2026-16493
https://bugzilla.redhat.com/show_bug.cgi?id=2503724

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Source: NIST National Vulnerability Database (record CVE-2026-16493), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.