CVE-2026-30967
HIGH EPSS 25.1%
Published Mar 10, 20263mo ago · Modified Mar 11, 20263mo ago
7.6 CVSS 4.0
Published Mar 10, 2026 3mo ago
Last Modified Mar 11, 2026 3mo ago
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.9. and 8.6.22, the OAuth2 authentication adapter, when configured without the useridField option, only verifies that a token is active via the provider's token introspection endpoint, but does not verify that the token belongs to the user identified by authData.id. An attacker with any valid OAuth2 token from the same provider can authenticate as any other user. This affects any Parse Server deployment that uses the generic OAuth2 authentication adapter (configured with oauth2: true) without setting the useridField option. This vulnerability is fixed in 9.5.2-alpha.9. and 8.6.22.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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 Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
25.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-287 Improper Authentication Authentication
Affected Products 10
| Vendor | Product | Version | Range |
|---|---|---|---|
| parseplatform | parse-server | * | <8.6.22 |
| parseplatform | parse-server | * | ≥9.0.0 – <9.5.2 |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
References 3
- github.com https://github.com/parse-community/parse-server/releases/tag/8.6.22
- github.com https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.9
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-fr88-w35c-r596
Remediation
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-fr88-w35c-r596