Medium severity · published Sep 23, 2026
CVE-2026-84717
Automation-controller: automation-controller: unauthenticated 200-vs-403 oracle in bitbucket data center webhook receiver enumerates webhook-enabled job templates
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.6 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ansible Automation Platform 2.7 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 8
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84717
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84717
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:71113
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:71114
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:71177
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:71179
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-84717
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2527210
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