CVE-2026-16493

HIGH
MEDIUM Priority: 0.02 BB Relevance: 41/100
Published: 2026-07-21 Modified: 2026-11-04 First seen: 2026-11-03 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

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.

References & Advisories (5)

https://access.redhat.com/errata/RHSA-2026:63385
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:63386
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:63387
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2503724
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

41 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.27%
Raw Score 0.002680
Percentile 19.1%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00268
2026-11-13
0.00268
2026-11-12
0.00268
2026-11-10
0.00268
2026-11-09
0.00268
2026-11-08
0.00268
2026-11-07
0.00268
2026-11-06
0.00268
2026-11-05
0.00268
2026-11-04
0.00268
2026-11-03
0.00268

Intelligence Sources

mitre ref →
nvd ref →