CVE-2026-105314
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk58th percentile - higher than 58% of all known CVEs
Summary
Papermerge 3.5.3 allows remote code execution by a standard user via directory traversal in a /api/documents/upload call. A Python .pth file can be written to site-packages, and its code is executed upon the next start of the Python interpreter.
Risk Assessment
An authenticated low-privileged user can achieve code execution on the server, leading to full system compromise and data access.
Recommendation
Update Papermerge to a version later than 3.5.3, and until then restrict access to the upload API and monitor the site-packages directory for unauthorized .pth files.
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Original NVD description (English source)
Papermerge 3.5.3 allows remote code execution by a standard user via directory traversal in a /api/documents/upload call. A Python .pth file can be written to site-packages, and its code is executed upon the next start of the Python interpreter.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

