CVE-2026-16493

high

Published 2026-07-21 · Modified 2026-07-22

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CVSS v3

7.8

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.8

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.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-16493 NameCVE-2026-16493 DescriptionA 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…

CVE-2026-16493

Name	CVE-2026-16493
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ansible (PTS)	bullseye	2.10.7+merged+base+2.10.17+dfsg-0+deb11u1	vulnerable
	bullseye (security)	2.10.7+merged+base+2.10.17+dfsg-0+deb11u4	vulnerable
	bookworm	7.7.0+dfsg-3+deb12u1	fixed
	trixie	12.0.0+dfsg-0+deb13u1	fixed
	forky, sid	14.0.0+dfsg-1	fixed
ansible-core (PTS)	bookworm	2.14.18-0+deb12u2	vulnerable
	trixie	2.19.4-0+deb13u1	vulnerable
	forky	2.21.1~rc1-2	vulnerable
	sid	2.21.2-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ansible	source	(unstable)	5.4.0-1
ansible-core	source	(unstable)	(unfixed)

Notes

ansible-core was split off from src:ansible with 4.6.0-1 in experimental/5.4.0-1 in sid
https://bugzilla.redhat.com/show_bug.cgi?id=2503724
Issue exists due to an incomplete fix for CVE-2026-11332
check upstream details

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

ansible-core was split off from src:ansible with 4.6.0-1 in experimental/5.4.0-1 in sidhttps://bugzilla.redhat.com/show_bug.cgi?id=2503724Issue exists due to an incomplete fix for CVE-2026-11332check upstream details

OS impact

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`5.4.0-1`
sid	Fixed	`5.4.0-1`
forky	Fixed	`5.4.0-1`
bullseye	Affected	—
bookworm	Fixed	`5.4.0-1`

References

CWEs

CWE-88

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.