CVE-2026-16493: Argument Injection (CVSS 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.

Is your site exposed to CVE-2026-16493?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-88 CWE-88

References

Other References

https://access.redhat.com/security/cve/CVE-2026-16493 https://bugzilla.redhat.com/show_bug.cgi?id=2503724

Frequently Asked Questions

What is CVE-2026-16493? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-16493? +

CVE-2026-16493 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-16493? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-7865

A hidden console command is vulnerable to command injection flaw when control characters are passed to its second argument. A …

CVE-2026-49987

Repomix is a tool that packs repositories into AI-friendly files. Prior to 1.14.1, src/core/git/gitCommand.ts execGitShallowClone passes the --remote-branch value directly …

CVE-2025-49008

Atheos is a self-hosted browser-based cloud integrated development environment. Prior to version 6.0.4, improper use of `escapeshellcmd()` in `/components/codegit/traits/execute.php` allows …

CVE-2025-48385

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations …

CVE-2025-47421

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in CRESTRON TOUCHSCREENS x70 allows Argument Injection.This issue affects …

CVE-2024-47611

XZ Utils provide a general-purpose data-compression library plus command-line tools. When built for native Windows (MinGW-w64 or MSVC), the command …

CVE-2026-16493