{"id":"CVE-2026-110623","title":"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","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-862"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T16:14:02.800","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110623","references":[{"url":"https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150","label":"disclosure@vulncheck.com"},{"url":"https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269","label":"disclosure@vulncheck.com"},{"url":"https://github.com/papermerge/papermerge-core/issues/1290","label":"disclosure@vulncheck.com"},{"url":"https://github.com/papermerge/papermerge-core/issues/1291","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-shared-nodes-api","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-14T15:36:14.009Z","slug":"CVE-2026-110623","body":"## Overview\n\nPapermerge 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}