{"id":"CVE-2026-29182","aliases":["BIT-parse-2026-29182","GHSA-vc89-5g3r-cmhh"],"url":"https://o3.security/vulnerability/CVE-2026-29182","summary":"Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction","details":"### Impact\n\nParse Server's `readOnlyMasterKey` option allows access with master-level read privileges but is documented to deny all write operations. However, some endpoints incorrectly accept the `readOnlyMasterKey` for mutating operations. This allows a caller who only holds the `readOnlyMasterKey` to create, modify, and delete Cloud Hooks and to start Cloud Jobs, which can be used for data exfiltration.\n\nAny Parse Server deployment that uses the `readOnlyMasterKey` option is affected. Note than an attacker needs to know the `readOnlyMasterKey` to exploit this vulnerability.\n\n### Patches\n\nThe fix adds authorization checks, rejecting mutating requests made with the `readOnlyMasterKey`.\n\n### Workarounds\n\nThere is no known workaround other than upgrading. If upgrading is not immediately possible, ensure the `readOnlyMasterKey` value is not shared with untrusted parties.\n\n### Resources\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-vc89-5g3r-cmhh\n- Fixed in Parse Server 9.4.1-alpha.3: https://github.com/parse-community/parse-server/releases/tag/9.4.1-alpha.3\n- Fixed in Parse Server 8.6.4: https://github.com/parse-community/parse-server/releases/tag/8.6.4","published":"2026-03-06T20:24:10.802Z","modified":"2026-08-12T03:51:26.805731986Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"parse-server","fixedVersion":"9.4.1-alpha.3"},{"ecosystem":"npm","name":"parse-server","fixedVersion":"8.6.4"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/parse-community/parse-server/releases/tag/8.6.4"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/releases/tag/9.4.1-alpha.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29182.json"},{"type":"ADVISORY","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-vc89-5g3r-cmhh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29182"},{"type":"PACKAGE","url":"https://github.com/parse-community/parse-server"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.805731986Z"}}