{"id":"CVE-2026-110623","revision":"6a559f1aaff944abaec20b368440eb97","records":[{"revision":"6a559f1aaff944abaec20b368440eb97","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110623","aliases":[],"title":"Papermerge Core through 3.5.3 Missing Authorization in Shared Nodes API","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.","state":0,"publishedAt":"2026-10-14T14:16:59.957+00:00","modifiedAt":"2026-10-16T17:16:11.037+00:00","affected":[{"ecosystem":"https://github.com/papermerge/papermerge-core","name":"papermerge-core","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"papermerge\",\n                    \"product\": \"papermerge-core\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"3.5.3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"collectionURL\": \"https://github.com/papermerge/papermerge-core\",\n                    \"packageURL\": \"pkg:github/papermerge/papermerge-core\",\n                    \"repo\": \"https://github.com/papermerge/papermerge-core\"\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":7.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.5,"severity":"HIGH"}],"references":["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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110623","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110623","identifiers":["CVE-2026-110623"]},"retained":false,"historicalAffected":[]}],"coverage":[]}