CVE-2026-84717
Automation-controller: automation-controller: unauthenticated 200-vs-403 oracle in bitbucket data center webhook receiver enumerates webhook-enabled job templates
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.
Fixes and workarounds
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Ansible Automation Platform 2.5 for RHEL 8 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.6.33-1.el8ap; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.5 for RHEL 9 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.6.33-1.el9ap; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.6 for RHEL 9 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.7.17-1.el9ap; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.6 Red Hat ansible-automation-platform-26/controller-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1789673739; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2.7 Red Hat ansible-automation-platform-27/controller-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1789580684; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.3 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | CNA: redhat |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/errata/RHSA-2026:71113CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:71114CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:71177CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:71179CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-84717CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2527210CNA: redhat · issue-tracking, x_refsource_REDHAT
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