Vulnerability in Papermerge
CVE-2026-105314
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.
Published .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Papermerge — versions 3.5.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/kashishtopi/cve-pocs/blob/main/papermerge-core-arbitrary-file-write-… (technical-description, exploit)
- github.com/papermerge/papermerge-core/blob/master/papermerge/core/features/docu… (technical-description)
- github.com/papermerge/papermerge-core/blob/master/papermerge/core/pathlib.py (technical-description)
- github.com/kashishtopi/cve-pocs/tree/main/papermerge-core-arbitrary-file-write-…
Frequently asked questions
- What is CVE-2026-105314?
- CVE-2026-105314 is a high-severity vulnerability in Papermerge, classified under CWE-24. CVSS score: 7.5/10. Published 2026-10-05.
- How severe is CVE-2026-105314?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-105314 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.