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CVE-2026-105314

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-05 · updated 2026-10-06
• Weakness: CWE-24

Description

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.

Affected products

• Papermerge: 3.5.3

References

• https://github.com/kashishtopi/cve-pocs/blob/main/papermerge-core-arbitrary-file-write-rce/HR-papermerge-core-path-traversal-rce.pdf
• https://github.com/kashishtopi/cve-pocs/tree/main/papermerge-core-arbitrary-file-write-rce
• https://github.com/papermerge/papermerge-core/blob/master/papermerge/core/features/document/router.py
• https://github.com/papermerge/papermerge-core/blob/master/papermerge/core/pathlib.py

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