CVE Catalog

CVE-2026-84717

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Summary

In Ansible Automation Platform automation-controller, the unauthenticated Bitbucket Data Center webhook receiver skips HMAC signature verification for diagnostics:ping events after looking up the target template, returning HTTP 200 for a template with 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.

Risk Assessment

An attacker can enumerate which templates have Bitbucket DC webhooks configured, disclosing configuration information. No authentication or knowledge of the secret is required.

Recommendation

Upgrade Ansible Automation Platform to a version containing the fix. Verify that HMAC signature verification is enforced for all webhook events.

Other vulnerabilities in Ansible Automation Platform automation-controller

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Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS