CVE-2026-30863
CRITICAL EPSS 40.5%
Published Mar 7, 20263mo ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Published Mar 7, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.10 and 9.5.0-alpha.11, the Google, Apple, and Facebook authentication adapters use JWT verification to validate identity tokens. When the adapter's audience configuration option is not set (clientId for Google/Apple, appIds for Facebook), JWT verification silently skips audience claim validation. This allows an attacker to use a validly signed JWT issued for a different application to authenticate as any user on the target Parse Server. This issue has been patched in versions 8.6.10 and 9.5.0-alpha.11.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
40.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-287 Improper Authentication Authentication
CWE-863 Incorrect Authorization Authorization
Affected Products 12
| Vendor | Product | Version | Range |
|---|---|---|---|
| parseplatform | parse-server | * | <8.6.10 |
| parseplatform | parse-server | * | ≥9.0.0 – <9.5.0 |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
| parseplatform | parse-server | 9.5.0 | any |
References 1
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-x6fw-778m-wr9v
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.