{"cve":"CVE-2026-34224","nvd":{"published":"2026-03-31T15:16:18.590","modified":"2026-07-24T21:10:00.143","status":"Modified","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.64 and 9.7.0-alpha.8, an attacker who possesses a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple authenticated sessions by sending concurrent login requests via the authData login endpoint. This defeats the single-use guarantee of MFA recovery codes and SMS one-time passwords, allowing session persistence even after the legitimate user revokes detected sessions. This issue has been patched in versions 8.6.64 and 9.7.0-alpha.8.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":2.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.4},"cwes":["CWE-367"],"references":["https://github.com/parse-community/parse-server/commit/661f160edac8daac0486bc94413cf9652876ab92","https://github.com/parse-community/parse-server/commit/e7efbebba398ce6abe5b6b6fb9829c6ebe310fbf","https://github.com/parse-community/parse-server/pull/10326","https://github.com/parse-community/parse-server/pull/10327","https://github.com/parse-community/parse-server/security/advisories/GHSA-w73w-g5xw-rwhf"],"products":["parseplatform:parse-server"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-34224","score":0.00317,"percentile":0.24637,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-w73w-g5xw-rwhf","url":"https://osv.dev/vulnerability/GHSA-w73w-g5xw-rwhf","summary":"Parse Server has an MFA single-use token bypass via concurrent authData login requests","modified":"2026-04-06T15:27:04.154437127Z","packages":[{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":[">=9.0.0 <9.7.0-alpha.8"],"fixed":["9.7.0-alpha.8"]},{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":["<8.6.64"],"fixed":["8.6.64"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}