{"id":"CVE-2026-104964","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-104964","generatedAt":"2026-10-28T03:31:53.440Z","title":"This violates tenant isolation and permits unauthorized cross-workspace changes to project metadata and configuration.","description":"Plane is an open-source project management tool. Prior to 1.4.0, Plane's project update endpoint authorizes the caller against the workspace slug in the request URL but loads the target project globally by UUID without binding it to that workspace. An administrator of one workspace can modify a project in another workspace when the victim project UUID is known. This violates tenant isolation and permits unauthorized cross-workspace changes to project metadata and configuration. This issue is fixed in 1.4.0.","published":"2026-10-05T17:17:12.000Z","lastModified":"2026-10-05T20:17:10.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N"},"cwe":["CWE-639"],"affected":[],"epss":{"score":0.00287,"percentile":0.21065,"date":"2026-10-27","history":[{"date":"2026-10-06","score":0.00287,"percentile":0.19335}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-05T17:17:12.000Z","detail":{"score":"6.8","severity":"MEDIUM","publishedAt":"2026-10-05T17:17:11.943Z"},"summary":"New CVE, medium severity (CVSS 6.8)."}],"references":[{"url":"https://github.com/makeplane/plane/commit/9491bdbe46e269611f9dad9cfb5182c2da8ca65a","source":"security-advisories@github.com"},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","source":"security-advisories@github.com"},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-pp22-3ghf-949q","source":"security-advisories@github.com"},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-pp22-3ghf-949q","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-104964","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."}