{"id":"CVE-2026-116801","aliases":[],"title":"Parse Server 9.0.0 before 9.10.5-alpha.6 ACL Bypass via $relatedTo Query","description":"Parse Server before 8.6.105 and 9.0.0 before 9.10.5-alpha.6 does not validate the owning object reference in $relatedTo relation queries, so supplying a query operator instead of an object ID bypasses the owning-object ACL check. A client with read access to at least one object of the owning class can disclose which readable objects are linked to owning objects it cannot read.","severity":"medium","score":5.3,"published":"2026-10-26T23:05:33.735Z","modified":"2026-10-27T14:16:07.428Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/parse-community/parse-server/security/advisories/GHSA-58m4-cqvw-4vgh","https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.5-alpha.6-acl-bypass-via-relatedto-query"],"sources":[{"name":"CVE","id":"CVE-2026-116801","modified":"2026-10-27T14:16:07.428Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116801"}],"assessments":[{"source":"CNA","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.3},{"source":"CNA","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3}]}