{"id":"CVE-2026-116801","aliases":["EUVD-2026-110509","GHSA-58m4-cqvw-4vgh","GHSA-mfg3-66fp-4xc4"],"status":"published","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":{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00253,"percentile":0.16914,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-943"],"published":"2026-10-26T23:05:33Z","modified":"2026-10-29T02:31:07Z","products":[{"vendor":"parse-community","product":"parse-server"}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-58m4-cqvw-4vgh","tags":["vendor-advisory","advisory"]},{"url":"https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.5-alpha.6-acl-bypass-via-relatedto-query","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116801","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mfg3-66fp-4xc4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116801.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-116801","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.","status":"published","published":"2026-10-26T23:05:33.735Z","modified":"2026-10-27T14:16:07.428Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-943"],"updated_at":"2026-11-02T14:20:03.4818Z"}],"euvd":[{"id":"EUVD-2026-110509","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.","status":"published","published":"2026-10-26T23:05:33Z","modified":"2026-10-27T14:16:07Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"updated_at":"2026-11-02T16:59:23.601588Z"}],"ghsa":[{"id":"GHSA-mfg3-66fp-4xc4","title":"Parse Server before 8.6.105 and 9.0.0 before 9.10.5-alpha.6 does not validate the owning object...","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.","status":"published","published":"2026-10-27T00:32:50Z","modified":"2026-10-27T00:32:55Z","cvss":[{"version":"4.0","score":5.3,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-943"],"updated_at":"2026-11-02T15:14:27.349207Z"}],"nvd":[{"id":"CVE-2026-116801","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.","status":"published","published":"2026-10-27T00:17:11.37Z","modified":"2026-10-27T16:03:45.247Z","cvss":[{"version":"4.0","score":5.3,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-943"],"updated_at":"2026-11-02T14:13:03.746397Z"}],"osv":[{"id":"CVE-2026-116801","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.","status":"published","published":"2026-10-26T23:05:33.735Z","modified":"2026-10-29T02:31:07.856035316Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"cwes":["CWE-943"],"updated_at":"2026-11-02T15:44:56.675758Z"}]}}