CVE-2026-34224
MEDIUMParse Server: MFA single-use token bypass via concurrent authData login requests
Title source: cnaDescription
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.
References (5)
Core 5
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/parse-community/parse-server/security/advisories/GHSA-w73w-g5xw-rwhf
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/pull/10326
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/pull/10327
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/commit/661f160edac8daac0486bc94413cf9652876ab92
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/commit/e7efbebba398ce6abe5b6b6fb9829c6ebe310fbf
Scores
CVSS v3
4.4
EPSS
0.0031
EPSS Percentile
22.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-367
Status
published
Products (5)
npm/parse-server
9.0.0 - 9.7.0-alpha.8npm
parse-community/parse-server
< 8.6.64
parse-community/parse-server
>= 9.0.0, < 9.7.0-alpha.8
parseplatform/parse-server
9.7.0 alpha1 (7 CPE variants)
parseplatform/parse-server
< 8.6.64
Published
Mar 31, 2026
Tracked Since
Mar 31, 2026