Advisory severityMedium5.0Red Hat Linux

Medium [CVE-2026-71458] Named-URL 404 body oracle enables cross-tenant resource name enumeration

This medium-severity Red Hat Linux advisory covers CVE-2026-71458 affecting Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9, Red Hat Ansible Automation Platform 2.6 for RHEL 9.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-71458 Source published Sep 23, 2026Source updated Sep 6, 2026

VulniPulse record published Sep 23, 2026Record updated Sep 25, 2026

CVE-2026-71458

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

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 matches..." reveals whether a named resource (org, credential, inventory, host) exists anywhere on the platform. Enables cross-tenant internal hostname enumeration.

Red Hat severity: Moderate — CVSS 5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N). Weakness: CWE-204.

Affected Red Hat products: Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Ansible Automation Platform 2.5 for RHEL 9; Red Hat Ansible Automation Platform 2.6 for RHEL 9; Red Hat Ansible Automation Platform 2.6; Red Hat Ansible Automation Platform 2.7. Red Hat fixing advisory: RHSA-2026:71114, RHSA-2026:71113, RHSA-2026:71179, RHSA-2026:71177.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Fixed versions

automation-controller-0:4.6.33-1.el8ap
automation-controller-0:4.6.33-1.el9ap
automation-controller-0:4.7.17-1.el9ap
ansible-automation-platform-26/controller-rhel9:1789673739
ansible-automation-platform-27/controller-rhel9:1789580684
RHSA-2026:71114
RHSA-2026:71113
RHSA-2026:71179
RHSA-2026:71177

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Mitigation

Upgrade to a fixed release: automation-controller-0:4.6.33-1.el8ap, automation-controller-0:4.6.33-1.el9ap, automation-controller-0:4.7.17-1.el9ap, ansible-automation-platform-26/controller-rhel9:1789673739, ansible-automation-platform-27/controller-rhel9:1789580684, RHSA-2026:71114. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-71458NVD CVE.org MITRE

Discussion(0)

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