{"action":"Upgrade parse-server to 4.5.2 or later.","affected":[{"fixed":"4.5.2","introduced":"0"}],"component":"parse-server","cve_ids":["CVE-2021-39138"],"ecosystem":"npm","epss":0.00993,"exploited":false,"fixed_versions":["4.5.2"],"ghsa_id":"GHSA-23r4-5mxp-c7g5","id":"tcs_01M5KERT05W0A33F8C86S6MERE","modified_at":"2026-07-08T06:29:03.167430438Z","published_at":"2021-08-23T19:41:52Z","references":["https://osv.dev/vulnerability/GHSA-23r4-5mxp-c7g5","https://github.com/parse-community/parse-server/security/advisories/GHSA-23r4-5mxp-c7g5","https://nvd.nist.gov/vuln/detail/CVE-2021-39138","https://github.com/parse-community/parse-server/commit/147bd9a3dc43391e92c36e05d5db860b04ca27db","https://github.com/parse-community/parse-server","https://github.com/parse-community/parse-server/releases/tag/4.5.2"],"severity":{"label":"medium","score":4.8},"sources":[{"source":"osv","source_id":"GHSA-23r4-5mxp-c7g5","url":"https://osv.dev/vulnerability/GHSA-23r4-5mxp-c7g5"}],"summary":"parse-server new anonymous user session acts as if it's created with password"}