CVE-2026-57485 Stirling-PDF: Internal Service Account API Key Disclosure via Pipeline Endpoint

High 8.5 Published Updated

Authenticated users can retrieve internal API keys to impersonate service accounts and access restricted internal endpoints.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-57485?

CVE-2026-57485 is a high-severity vulnerability in Stirling-Tools Stirling-PDF, published on 17 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 2.9.0, the /api/v1/pipeline/handleData endpoint in app/core/src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineProcessor.java injects the STIRLING-PDF-BACKEND-API-USER API key into pipeline subrequests, allowing an authenticated ROLE_USER to retrieve the key through /api/v1/user/get-api-key, impersonate the internal service account, bypass normal rate limits, and access internal endpoints including /api/v1/info/requests/all and /api/v1/info/load/all. This issue is fixed in version 2.9.0.

Weakness: CWE-522, CWE-200

Which versions are affected by CVE-2026-57485?

How do I fix CVE-2026-57485?

No fix has been published for CVE-2026-57485 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-57485 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57485 exists.

Sources

Also known as GHSA-3xxh-mm3g-c9w5.

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