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CVE-2026-12398 Red Hat CVE debrief

CVE-2026-12398 is a HIGH severity vulnerability with a CVSS score of 7.5. 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
Red Hat
Product
Red Hat Ansible Automation Platform 2
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-16
Original CVE updated
2026-06-29
Advisory published
2026-06-16
Advisory updated
2026-06-29

Who should care

Users of galaxy_ng, particularly those who have GALAXY_ENABLE_LEGACY_ROLES set to True, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The do_git_checkout() function in the legacy role import API (v1) of galaxy_ng is vulnerable to command injection. An authenticated user can create a branch or tag with shell metacharacters in the name to achieve remote code execution on the pulp worker.

Defensive priority

HIGH

Recommended defensive actions

  • Update galaxy_ng to a version that fixes the command injection vulnerability.
  • Disable the legacy role import API (v1) if not needed.
  • Set GALAXY_ENABLE_LEGACY_ROLES to False if possible.

Evidence notes

The CVE-2026-12398 record was obtained from the NVD database. Additional information was obtained from Red Hat's security advisory (see resourceLinkAnnotations).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-12398 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-12398

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-12398 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-12398

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.