CVE-2026-34224

EUVD-2026-17462
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.
TOCTOU
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.4 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Affected Products (NVD)
VendorProductVersion
parseplatformparse-server
𝑥
< 8.6.64
parseplatformparse-server
9.0.0 ≤
𝑥
< 9.7.0
parseplatformparse-server
9.7.0:alpha1
parseplatformparse-server
9.7.0:alpha2
parseplatformparse-server
9.7.0:alpha3
parseplatformparse-server
9.7.0:alpha4
parseplatformparse-server
9.7.0:alpha5
parseplatformparse-server
9.7.0:alpha6
parseplatformparse-server
9.7.0:alpha7
𝑥
= Vulnerable software versions