CVE-2026-105314
Papermerge 3.5.3 allows remote code execution by a standard user via directory traversal in a /api/documents/upload call.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.13% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-24
- Source
- cve@mitre.org
EPSS moved from 0.9% on 5 October 2026 to 1.1% on 26 October 2026.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.