CVE-2026-84717

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:71113
https://access.redhat.com/errata/RHSA-2026:71114
https://access.redhat.com/errata/RHSA-2026:71177
https://access.redhat.com/errata/RHSA-2026:71179
https://access.redhat.com/security/cve/CVE-2026-84717
https://bugzilla.redhat.com/show_bug.cgi?id=2527210

Configurations

No configuration.

History

24 Sep 2026, 07:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:71177 - () https://access.redhat.com/errata/RHSA-2026:71179 -

24 Sep 2026, 04:18

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:71114 -

23 Sep 2026, 23:18

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:71113 -

23 Sep 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-23 20:17

Updated : 2026-09-26 23:16

NVD link : CVE-2026-84717

Mitre link : CVE-2026-84717

CVE.ORG link : CVE-2026-84717

JSON object : View

Products Affected

No product.

CWE

CWE-204

Observable Response Discrepancy

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The unauthenticated\nBitbucket Data Center webhook receiver skips HMAC signature verification for diagnostics:ping\nevents after it has already looked up the target template, causing the endpoint to return HTTP\n200 for a template that has a Bitbucket DC webhook configured and HTTP 403 otherwise. An\nunauthenticated remote attacker can use this response discrepancy as an oracle to enumerate\nwhich Job Template and Workflow Job Template IDs have Bitbucket DC webhooks configured, without\nknowing the secret webhook_key."}], "lastModified": "2026-09-26T23:16:37.953", "sourceIdentifier": "secalert@redhat.com"}