Python-pulpcore: pulpcore: header content guard jq filter exposes the content-app environment
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
- Last modified
- Whether it needs action now or is a reference record, by fixed rules, with why. Last checked is when cve.now last re-read it.What do these mean? →
- Reference
- Last checked
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 25/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Pulpcore's header content guard lets a low-privileged user on the network read the server's environment, including secrets such as the Django secret key and database password. The attacker saves a jq filter that uses the `env` builtin, then repeats content requests to recover the data.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original 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.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure3/25Reachable over the network · Unknown: No advisory context yet
- Reach10/20Shipped in major Linux distributions
- Severity6.5/10CVSS 6.5
- No patch5/5No patch listed yet
What would change the score
- Would score about 80 if added to CISA KEV
- Would score about 75 if CISA's SSVC rates exploitation active
- Would score about 44 if advisories confirm default setups are exposed
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Check whether my systems are affected by CVE-2026-123084 (Python-pulpcore: pulpcore: header content guard jq filter exposes the content-app environment), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-123084 (entry last updated 2026-11-10): Affected: - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Ansible Automation Platform 2: version range not reported - Red Hat Red Hat Satellite 6: version range not reported - Red Hat Red Hat Satellite 6: version range not reported - and 5 more affected products, listed on https://cve.now/CVE-2026-123084 Fixed versions: none listed yet. Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. CISA KEV: CVE-2026-123084 is not listed as of cve.now's last read. This KEV status is for CVE-2026-123084 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://bugzilla.redhat.com/show_bug.cgi?id=2567260 - https://access.redhat.com/security/cve/CVE-2026-123084 Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-123084 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-123084.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- ansible-automation-platform-24/hub-rhel8
Version range not reported
- ansible-automation-platform-25/hub-rhel8
Version range not reported
- ansible-automation-platform-26/hub-rhel9
Version range not reported
- ansible-automation-platform-27/hub-rhel9
Version range not reported
- python3.11-pulpcore
Version range not reported
- python3.12-pulpcore
Version range not reported
- python3x-pulpcore
Version range not reported
- python-pulpcore
Version range not reported
Show all 15 packagesShow fewer packages
- python3.12-pulpcore
Version range not reported
- python-pulpcore
Version range not reported
- python-pulpcore
Version range not reported
- python-pulpcore-client
Version range not reported
- python-pulpcore-client
Version range not reported
- rhui5/rhua-rhel9
Version range not reported
- rhui5/rhua-tp-rhel9
Version range not reported
Evidence 4
CVE record · 2
Establishes: The identifier and description.
- Record
- Record
Write-ups · 1
Establishes: Technical detail and context.
- Report
Other links · 1
- Link
Corrections
None so far.
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