Galaxy_ng: shell injection in legacy role import via unsanitized git ref names

published 2026-06-16 4 mo ago modified 2026-11-05 3 d ago also GHSA-6hw7-j4jw-wpff , PYSEC-2026-2486 , EUVD-2026-37124

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

A command injection vulnerability was found in galaxy_ng. The do_git_checkout() function in the legacy role import API (v1) interpolates unsanitized git ref names (branch/tag names) into shell commands executed via subprocess.run() with shell=True. An authenticated user who controls a git repository can create a branch or tag with shell metacharacters in the name to achieve remote code execution on the pulp worker. The vulnerable endpoint is only reachable when GALAXY_ENABLE_LEGACY_ROLES is set to True, which is not the default configuration.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-12398 updated 2026-11-05 cvss 7.5

galaxy_ng: shell injection in legacy role import via unsanitized git ref names

Red Hat Ansible Automation Platform 2 automation-hub, ansible-automation-platform-25/hub-rhel8, ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-27/hub-rhel9
affected: workaround, no fix available
Red Hat Ansible Automation Platform 2 python-galaxy-ng, python3x-galaxy-ng, python3.11-galaxy-ng, python3.12-galaxy-ng
under investigation
Red Hat Ansible Automation Platform 2 ansible-automation-platform-24/hub-rhel8
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 4 mo ago (2026-06-16)

Exploit prediction

0.89% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	galaxy-ng	<=4.9.2	no fix listed

Affected products

Red Hat Red Hat Ansible Automation Platform 2

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

access.redhat.com /security/cve/CVE-2026-12398
vdb-entry, web
bugzilla.redhat.com /show_bug.cgi?id=2489180
issue-tracking, web
nvd.nist.gov /vuln/detail/CVE-2026-12398
advisory
github.com /ansible/galaxy_ng
package
pypi.org /project/galaxy-ng
package
github.com /advisories/GHSA-6hw7-j4jw-wpff
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary