CVE-2026-31875

EUVD-2026-11280
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.7 and 8.6.33, when multi-factor authentication (MFA) via TOTP is enabled for a user account, Parse Server generates two single-use recovery codes. These codes are intended as a fallback when the user cannot provide a TOTP token. However, recovery codes are not consumed after use, allowing the same recovery code to be used an unlimited number of times. This defeats the single-use design of recovery codes and weakens the security of MFA-protected accounts. An attacker who obtains a single recovery code can repeatedly authenticate as the affected user without the code ever being invalidated. This vulnerability is fixed in 9.6.0-alpha.7 and 8.6.33.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
parseplatformparse-server
𝑥
< 8.6.33
parseplatformparse-server
9.0.0 ≤
𝑥
< 9.6.0
parseplatformparse-server
9.6.0:alpha1
parseplatformparse-server
9.6.0:alpha2
parseplatformparse-server
9.6.0:alpha3
parseplatformparse-server
9.6.0:alpha4
parseplatformparse-server
9.6.0:alpha5
parseplatformparse-server
9.6.0:alpha6
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/parse-community/parse-server/releases/tag/8.6.33
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.7
https://github.com/parse-community/parse-server/security/advisories/GHSA-4hf6-3x24-c9m8