EUVD-2026-13638Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Lifecycle Timeline
6DescriptionGitHub Advisory
Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated user can write files outside the intended temporary working directory, leading to arbitrary file write with the privileges of the Stirling-PDF process user (stirlingpdfuser). This can overwrite writable files and compromise data integrity, with further impact depending on writable paths. The issue was fixed in version 2.5.2.
AnalysisAI
Stirling-PDF, a locally hosted web application for PDF operations, contains a path traversal vulnerability in the /api/v1/convert/markdown/pdf endpoint that allows authenticated users to write arbitrary files outside the intended directory. Versions prior to 2.5.2 are affected, enabling attackers to overwrite writable files with the privileges of the stirlingpdfuser process account, compromising data integrity and potentially availability. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Authenticated user access to Stirling-PDF versions prior to 2.5.2. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS v3.1 score of 8.1 reflects High severity with network attack vector (AV:N), low complexity (AC:L), low privileges required (PR:L), no user interaction (UI:N), and high impact to integrity and availability (I:H/A:H) but no confidentiality impact (C:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated attacker with valid credentials to a Stirling-PDF instance crafts a malicious ZIP file containing entries with path traversal sequences (e.g., ../../../../etc/cron.d/malicious or paths targeting application configuration files). The attacker uploads this ZIP file to the /api/v1/convert/markdown/pdf endpoint, which extracts the archive without validating paths. … |
| Remediation | Upgrade Stirling-PDF to version 2.5.2 or later immediately, as documented in the release notes at https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v2.5.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all instances of Stirling-PDF in use and document current versions. …
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