🛡️ CVE-2026-16493 on Ubuntu — ansible

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2026-16493 as tracked by Ubuntu, for the package ansible. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

UBUNTU-CVE-2026-16493 is classified as CWE-88: Argument Injection. Input is passed into a command line without separating data from options, letting an attacker introduce extra arguments.

Affected software

UBUNTU-CVE-2026-16493 is recorded against 2 packages.

ansible
ansible-core

Timeline and source

Published on 21 July 2026 and last revised on 29 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
bugzilla.redhat.com (Report)

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-07-21

Updated 2026-08-11

Modified 2026-07-29

Fix URL N/A

Affected Packages

Software	From version	Fixed in
ansible	—	—
ansible-core	—	—

References

REPORT https://ubuntu.com/security/CVE-2026-16493

REPORT https://www.cve.org/CVERecord?id=CVE-2026-16493

REPORT https://bugzilla.redhat.com/show_bug.cgi?id=2503724

🔗 NVD 🔗 Mitre

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