{"id":"CVE-2026-110623","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-110623","generatedAt":"2026-10-27T22:47:14.152Z","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.","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.","published":"2026-10-14T15:17:15.000Z","lastModified":"2026-10-16T18:17:33.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":7.7,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.00499,"percentile":0.42479,"date":"2026-10-26","history":[{"date":"2026-10-15","score":0.00499,"percentile":0.41333}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-14T15:17:15.000Z","detail":{"score":"7.7","severity":"HIGH","publishedAt":"2026-10-14T15:17:14.833Z"},"summary":"New CVE, high severity (CVSS 7.7)."}],"references":[{"url":"https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150","source":"disclosure@vulncheck.com"},{"url":"https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269","source":"disclosure@vulncheck.com"},{"url":"https://github.com/papermerge/papermerge-core/issues/1290","source":"disclosure@vulncheck.com"},{"url":"https://github.com/papermerge/papermerge-core/issues/1291","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-shared-nodes-api","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-110623","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}