CVE-2026-30863 json
Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters
published 2026-03-07 8 mo ago modified 2026-09-08 2 mo ago also BIT-parse-2026-30863 , EUVD-2026-10172 , GHSA-x6fw-778m-wr9v
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm parse-server 8.6.10, 9.5.0-alpha.11
- bitnami parse 9.5.0
- parseplatform parse-server 8.6.10, 9.5.0-alpha.11
- parseplatform parse_server 8.6.10, 9.5.0-alpha.11
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| CNA | 4.0 | 9.3 | 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 |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | parse-server | >=9.0.0-alpha.1, <9.5.0-alpha.11 <8.6.10 |
9.5.0-alpha.11 8.6.10 |
| bitnami | parse | <9.5.0 |
9.5.0 |
Affected products
- parse-community parse-server
Classification
References
-
github.com
/parse-community/parse-server/security/advisories/GHSA-x6fw-778m-wr9v
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-30863
advisory, web
-
github.com
/parse-community/parse-server
package
Sources
- CVE List CVE-2026-30863
- GitHub Advisory GHSA-x6fw-778m-wr9v
- NVD CVE-2026-30863
- OSV BIT-parse-2026-30863
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.