EUVD-2026-60364Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
PR:L because a valid ROLE_USER account is required; S:C because exploitation crosses from user context into privileged internal service account; C:H from API key disclosure and sensitive endpoint access; I:L from rate-limit bypass and impersonation; A:N as no availability impact is described.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Privilege escalation in Stirling-PDF before 2.9.0 allows any authenticated ROLE_USER to obtain the privileged STIRLING-PDF-BACKEND-API-USER internal service account API key through the pipeline subrequest mechanism, then impersonate that account to bypass rate limits and query sensitive monitoring endpoints such as /api/v1/info/requests/all and /api/v1/info/load/all. The root cause is PipelineProcessor.java injecting the static internal service account key into pipeline subrequests rather than the requesting user's own key, making it retrievable via /api/v1/user/get-api-key. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an active, authenticated ROLE_USER account on the target Stirling-PDF instance (CVSS PR:L confirms authentication is mandatory - unauthenticated exploitation is not possible). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N scores 8.5 and accurately reflects the attack profile: network-reachable, low complexity, requiring only a standard user account, with a scope change to the privileged internal service account context and high confidentiality impact from API key disclosure and sensitive endpoint access. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Stirling-PDF to version 2.9.0 or later, available at https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v2.9.0 and confirmed by the vendor advisory GHSA-3xxh-mm3g-c9w5. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all systems to identify Stirling-PDF installations and document current versions; the inventory must be complete within this timeframe. …
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External POC / Exploit Code
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