{"id":"CVE-2026-110623","published":"2026-10-14T15:17:14.833","lastModified":"2026-10-16T18:17:32.670","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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150","tags":[]},{"url":"https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269","tags":[]},{"url":"https://github.com/papermerge/papermerge-core/issues/1290","tags":[]},{"url":"https://github.com/papermerge/papermerge-core/issues/1291","tags":[]},{"url":"https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-shared-nodes-api","tags":[]}],"exploitRefs":[{"url":"https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150","tags":[]},{"url":"https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269","tags":[]},{"url":"https://github.com/papermerge/papermerge-core/issues/1290","tags":[]},{"url":"https://github.com/papermerge/papermerge-core/issues/1291","tags":[]}],"hasPoc":true,"ai":null}