All vulnerabilities
CVE-2026-84717

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 8Operating systems
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 25% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published23 Sep 2026Updated 16 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 5

  • Red Hat Ansible Automation Platform 2.5 for RHEL 8unaffected: 0:4.6.33-1.el8ap and laterCVE List
  • Red Hat Ansible Automation Platform 2.5 for RHEL 9unaffected: 0:4.6.33-1.el9ap and laterCVE List
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9unaffected: 0:4.7.17-1.el9ap and laterCVE List
  • Red Hat Ansible Automation Platform 2.6unaffected: 1789673739 and laterCVE List
  • Red Hat Ansible Automation Platform 2.7unaffected: 1789580684 and laterCVE List

References 6