# CVE-2026-84720: Information disclosure in Red Hat Ansible Automation Platform 2.5 for RHEL 8

> Authenticated users can recover no_log secrets via ORM traversal count-oracles in Ansible Automation Platform workflow artifacts.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Sep 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-h789-rmcq-fh7h

## What is CVE-2026-84720?

CVE-2026-84720 is a medium-severity vulnerability in Red Hat Ansible Automation Platform 2.5 for RHEL 8, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw was found in the Ansible Automation Platform automation-controller. The
WorkflowJobNode.ancestor_artifacts database column, which stores the raw merged set_stats
artifacts propagated between workflow nodes, is not wrapped in prevent_search() and is therefore
accepted for arbitrary field lookups by the REST filter backend, even though it is omitted from
the API serializer. Because the column is persisted before Ansible's no_log masking is applied,
a user with only read access to a workflow — or, via a regular-expression lookup that bypasses
the JSON cross-relation filter guard through the world-readable credential-types endpoint, any
authenticated user with no roles — can use the result count as a boolean/count oracle to recover,
character by character, secret values that a playbook author explicitly marked no_log, including
across organizations.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-84720?


## How do I fix CVE-2026-84720?

Apply the vendor's patch.

## Is CVE-2026-84720 being exploited?

There is no known exploitation of CVE-2026-84720 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84720 and fix it if it is affected.

What it is: CVE-2026-84720 is a medium-severity vulnerability in Red Hat Ansible Automation Platform 2.5 for RHEL 8, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-84720 in the wild and no public exploit code.

Affected product: Red Hat Ansible Automation Platform 2.5 for RHEL 8. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-84720/ (Markdown: https://insights.sbomify.com/CVE-2026-84720/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84720
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84720
- OSV: https://osv.dev/vulnerability/CVE-2026-84720

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84720/
Summaries are generated and may contain mistakes; the official description above is the record.