CVE-2026-105314 Papermerge - Remote Code Execution

Papermerge 3.5.3 contains a remote code execution caused by directory traversal in /api/documents/upload, letting standard users write Python .pth files to site-packages and execute code on interpreter restart, exploit requires standard user privileges.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
EPSS
0.90% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
5 October 2026
Updated
15 October 2026
Weakness
CWE-24

Vendor fix

Update to the latest version of Papermerge.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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