Medium · CVSS 6.5CVE-2026-123084

Python-pulpcore: pulpcore: header content guard jq filter exposes the content-app environmentCVE-2026-123084

Answer in brief

CVE-2026-123084 records a Medium severity (CVSS 6.5) vulnerability in Python-pulpcore: pulpcore: header content guard jq filter exposes the content-app environment. The current sources do not mark it as known exploited. The current feed maps Red Hat/ansible-automation-platform-26/hub-rhel9 (generic), Red Hat/ansible-automation-platform-27/hub-rhel9 (generic), Red Hat/python3.11-pulpcore (generic), Red Hat/python3.12-pulpcore (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 10, 2026Updated Nov 10, 2026Source checked Nov 10, 2026First seen by HOL Nov 10, 2026Material review Nov 10, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.5
Exploitation: Not marked as known exploited
Affected software: 4 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/ansible-automation-platform-26/hub-rhel9 (generic), Red Hat/ansible-automation-platform-27/hub-rhel9 (generic), Red Hat/python3.11-pulpcore (generic), Red Hat/python3.12-pulpcore (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Red Hat/ansible-automation-platform-26/hub-rhel9generic	*	Not reported
Red Hat/ansible-automation-platform-27/hub-rhel9generic	*	Not reported
Red Hat/python3.11-pulpcoregeneric	*	Not reported
Red Hat/python3.12-pulpcoregeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/ansible-automation-platform-26/hub-rhel9, Red Hat/ansible-automation-platform-27/hub-rhel9, Red Hat/python3.11-pulpcore.
Review the reported fix. Source-reported workaround: Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.

Evidence timeline and material changes

Published upstream
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 10, 2026

Sources and claim methodology

Upstream source description

An **expression language injection** has been found in the HeaderContentGuard.permit function in publication.py of the content guard in the **Pulpcore** package. The guard is supposed to check a value in a request header. It saves a jq filter and runs that filter against the header when a client asks for content. The filter is not limited to the header, and jq's env builtin also returns the environment of the content process. A low-privileged network attacker or user who can create a header content guard and attach it to a distribution can save a filter that reads that environment. The content request is allowed or denied according to the filter result. Repeating the request lets that attacker or user recover the environment, including Pulp settings held there, such as the Django secret key or the database password.

Quoted source text, attributed separately from HOL analysis.