CVE-2026-110623
CVE-2026-110623 · Papermerge Core through 3.5.3 Missing Authorization in Shared Nodes API
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.7 · High · EPSS 0.5%
- Published
- Updated
Affected products and versions
papermerge-core
- Versions
- ≥ 0, ≤ 3.5.3: Affected (semver)
No fix published
Original sources
- https://github.com/papermerge/papermerge-core/issues/1290
- https://github.com/papermerge/papermerge-core/issues/1291
- https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150
- https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269
- https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-shared-nodes-api
- https://nvd.nist.gov/vuln/detail/CVE-2026-110623