Automation-controller: automation-controller: unauthenticated 200-vs-403 oracle in bitbucket data center webhook receiver enumerates webhook-enabled job templates (Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.34 % · percentile 27 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Awaiting Analysis
Description
A flaw was found in the Ansible Automation Platform automation-controller. The unauthenticated Bitbucket Data Center webhook receiver skips HMAC signature verification for diagnostics:ping events after it has already looked up the target template, causing the endpoint to return HTTP 200 for a template that has a Bitbucket DC webhook configured and HTTP 403 otherwise. An unauthenticated remote attacker can use this response discrepancy as an oracle to enumerate which Job Template and Workflow Job Template IDs have Bitbucket DC webhooks configured, without knowing the secret webhook_key.
Weaknesses (CWE)
- CWE-204 — Observable Response Discrepancy
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | redhat |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | NVD · secalert@redhat.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-85612
- GCVE · GCVE-0-2026-84717
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 8 | unaffected 0:4.6.33-1.el8ap < * |
| Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 9 | unaffected 0:4.6.33-1.el9ap < * |
| Red Hat · Red Hat Ansible Automation Platform 2.6 for RHEL 9 | unaffected 0:4.7.17-1.el9ap < * |
| Red Hat · Red Hat Ansible Automation Platform 2.6 | unaffected 1789673739 < * |
| Red Hat · Red Hat Ansible Automation Platform 2.7 | unaffected 1789580684 < * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |