CVE-2026-31875
Description
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.
CVSS Details
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Threat Intelligence
Weaknesses 1
Affected Products 8
| Vendor | Product | Version | Range |
|---|---|---|---|
| parseplatform | parse-server | * | <8.6.33 |
| parseplatform | parse-server | * | ≥9.0.0 – <9.6.0 |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
References 3
- github.com https://github.com/parse-community/parse-server/releases/tag/8.6.33
- github.com https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.7
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-4hf6-3x24-c9m8
Remediation
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-4hf6-3x24-c9m8