# CVE-2026-71458: Information disclosure in Red Hat Ansible Automation Platform 2.5 for RHEL 8

> Attackers can enumerate cross-tenant resource names via differential 404 responses, exposing internal hostnames and organizational structures.

- **Severity:** Medium 5.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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-2wm8-q2cf-p9fx

## What is CVE-2026-71458?

CVE-2026-71458 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

URLModificationMiddleware resolves named-URL lookups
              against unfiltered Model.objects before RBAC. The 403→404
              shim only rewrites 403 responses, leaving the pk=0 miss
              path with a different 404 detail string. Differential
              "Not found." vs "No <Model> matches..." reveals whether
              a named resource (org, credential, inventory, host) exists
              anywhere on the platform. Enables cross-tenant internal
              hostname enumeration.

Weakness: CWE-204 (Observable Response Discrepancy)

## Which versions are affected by CVE-2026-71458?


## How do I fix CVE-2026-71458?

Apply the vendor's patch.

## Is CVE-2026-71458 being exploited?

There is no known exploitation of CVE-2026-71458 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-71458 and fix it if it is affected.

What it is: CVE-2026-71458 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-2026-71458 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-2026-71458/ (Markdown: https://insights.sbomify.com/CVE-2026-71458/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-71458
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-71458
- OSV: https://osv.dev/vulnerability/CVE-2026-71458

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-71458/
Summaries are generated and may contain mistakes; the official description above is the record.