CVE-2026-110623

Papermerge Core through 3.5.3 Missing Authorization in Shared Nodes API

Published Oct 14, 2026 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
Description
Papermerge Core through 3.5.3 contains a missing authorization vulnerability in the shared nodes API that allows authenticated users to share other users' documents by supplying arbitrary node UUIDs. Attackers can call POST /shared-nodes or PATCH /shared-nodes/access/{node_id} to grant themselves any role, then read, modify, or delete victims' documents and revoke existing shares.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Papermerge Core through 3.5.3 contains a missing authorization vulnerability in the shared nodes API that allows authenticated users to share other users' documents by supplying arbitrary node UUIDs. Attackers can call POST /shared-nodes or PATCH /shared-nodes/access/{node_id} to grant themselves any role, then read, modify, or delete victims' documents and revoke existing shares.
Title Papermerge Core through 3.5.3 Missing Authorization in Shared Nodes API
First Time appeared Papermerge
Papermerge papermerge
Weaknesses CWE-862
CPEs cpe:2.3:a:papermerge:papermerge:*:*:*:*:*:*:*:*
Vendors & Products Papermerge
Papermerge papermerge
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 16, 2026, 5:16 PM
Reserved
Oct 14, 2026, 1:07 PM
Status
Deferred
Published
Oct 14, 2026, 3:17 PM
Modified
Oct 16, 2026, 6:17 PM