CVE-2026-30863
published 2026-03-07CVE-2026-30863: 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…
PriorityP261critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.53%
40.5th percentile
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.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| parse-community | parse-server | < 8.6.10 | 8.6.10 |
| parse-community | parse-server | < 9.5.0-alpha.11 | 9.5.0-alpha.11 |
| parse-community | parse-server | >= 0 < 8.6.10 | 8.6.10 |
| parse-community | parse-server | >= 9.0.0-alpha.1 < 9.5.0-alpha.11 | 9.5.0-alpha.11 |
| parseplatform | parse-server | < 8.6.10 | 8.6.10 |
| parseplatform | parse-server | — | — |
| parseplatform | parse-server | >= 9.0.0 < 9.5.0 | 9.5.0 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS: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
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OSV
Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
osv·2026-03-09
CVE-2026-30863 [CRITICAL] Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
### Impact
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.
- For Google and Apple, the vulnerability is exploitable when the server does not configure `clientId`. The adapters accepted this as valid and simply skipped audience validation.
- For Facebook Limited Login, the vulnerability exists regardless of configuration.
GHSA
Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
ghsa·2026-03-09
CVE-2026-30863 [CRITICAL] CWE-287 Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
### Impact
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.
- For Google and Apple, the vulnerability is exploitable when the server does not configure `clientId`. The adapters accepted this as valid and simply skipped audience validation.
- For Facebook Limited Login, the vulnerability exists regardless of configuration.
No detection rules found.
No public exploits indexed.
2026-03-07
Published