{"id":"CVE-2026-110623","summary":"Papermerge Core through 3.5.3 Missing Authorization in Shared Nodes API","details":"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.","modified":"2026-10-15T02:47:28.183405795Z","published":"2026-10-14T14:16:59.957Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110623.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110623.json"},{"type":"PACKAGE","url":"https://github.com/papermerge/papermerge-core"},{"type":"ARTICLE","url":"https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150"},{"type":"FIX","url":"https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269"},{"type":"REPORT","url":"https://github.com/papermerge/papermerge-core/issues/1290"},{"type":"REPORT","url":"https://github.com/papermerge/papermerge-core/issues/1291"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110623"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-shared-nodes-api"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/papermerge/papermerge-core","events":[{"introduced":"0"},{"last_affected":"13994c3c174bf5b634080c157a6c305c60aa84cb"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"3.5.3"}],"source":"AFFECTED_FIELD"}}],"versions":["3.5.3","3.5.2","3.5.1","3.5","3.4.1","3.4","3.3.1","3.3.0","3.3","3.2.0","3.2","3.1","3.0.3","3.0.2","3.0.1","3.0.0","3.0","2.1.9","v2.1.9","v2.1.8","v2.1.7","v2.1.5","v2.1.1","v2.1.0","v2.1.0b5","v2.1.0b3","v2.1.0b1","v2.0.1","v2.0.0","v2.0.0rc48","v2.0.0rc47"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110623.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}