Medium [CVE-2026-12726] Awx: automation-controller: awx: github webhook second-order ssrf via unvalidated statuses_url exfiltrates pat credential
This medium-severity Red Hat Linux advisory covers CVE-2026-12726 affecting Red Hat Ansible Automation Platform 2.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
A flaw was found in the AWX GitHub webhook integration. When processing GitHub pull_request webhooks, the controller stores the pull_request.statuses_url value from the webhook payload without validating that it points to a trusted GitHub API endpoint.
If a job template is configured with a GitHub Personal Access Token as its webhook credential, the controller later POSTs that token to the stored callback URL when posting job status updates.
An attacker who can submit a correctly signed forged webhook using the job template's webhook_key can redirect the callback to an attacker-controlled URL and exfiltrate the configured GitHub PAT. Red Hat rates this issue as Moderate impact.
This flaw affects AWX controller deployments that enable GitHub webhooks with status callback configured (webhook_service=github and a GitHub Personal Access Token configured as webhook_credential on the job template).
The controller intentionally uses the configured GitHub PAT to post commit status updates back to GitHub; however, it fails to restrict the callback destination to trusted GitHub API endpoints. When a forged webhook with a valid HMAC signature supplies a malicious statuses_url, the PAT may be sent to an attacker-controlled URL on job completion.
Exploitation requires knowledge of the per-job-template webhook_key used to validate incoming webhook requests.
Is CVE-2026-12726 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-12726 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-12726?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Mitigation checklist
- The following practices may reduce exposure to this flaw until a fix is available: 1. Restrict network access to controller webhook endpoints so only trusted GitHub egress IPs or an approved reverse proxy can reach them. 2. Protect job template webhook keys as secrets; restrict Job Template admin access; rotate webhook keys if compromise is suspected. 3. If commit status callback to GitHub is not required, configure GitHub webhooks without a webhook_credential on the job template (this disables PAT transmission on job completion). 4. Monitor controller logs and outbound connections for unexpected callback destinations following webhook-triggered jobs.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Get an email when Red Hat publishes the next one.
See Red Hat's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
More Red Hat Linux advisories
- CVE-2026-119977Oct 31, 2026Arbitrary code execution via predictable upgrade staging paths
- CVE-2026-111497Oct 22, 2026Out-of-Bounds Write in Google Brotli Decoder
- CVE-2026-109619Oct 21, 2026fatal error handling retains stale request state leading to use-after-free
- CVE-2026-109618Oct 21, 2026OOM bailout during request parsing leads to memory corruption and RCE
- CVE-2026-97229Oct 13, 2026integer overflow issue in CI/CD regular expression compiler
- CVE-2026-64849Aug 17, 2026Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed
iPhone and Android apps · New on the App Store
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.