CVE-2026-30967 json
Parse Server OAuth2 authentication adapter account takeover via identity spoofing
published 2026-03-10 8 mo ago modified 2026-09-08 2 mo ago also BIT-parse-2026-30967 , EUVD-2026-10884 , GHSA-fr88-w35c-r596
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- 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 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.
Patch / fix
- npm parse-server 8.6.22, 9.5.2-alpha.9
- bitnami parse 8.6.22, 9.5.2
- parseplatform parse-server 8.6.22, 9.5.2-alpha.9
- parseplatform parse_server 8.6.22, 9.5.2-alpha.9
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.6 | 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 |
| CNA | 4.0 | 7.6 | 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 |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/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, <9.5.2-alpha.9 <8.6.22 |
9.5.2-alpha.9 8.6.22 |
| bitnami | parse | <8.6.22 >=9.0.0, <9.5.2 |
8.6.22 9.5.2 |
Affected products
- parse-community parse-server
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/parse-community/parse-server/security/advisories/GHSA-fr88-w35c-r596
web, patch, vendor-advisory, advisory
-
github.com
/parse-community/parse-server/releases/tag/8.6.22
web, product, release-notes, article
-
github.com
/parse-community/parse-server/releases/tag/9.5.2-alpha.9
web, product, release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-30967
advisory, web
-
github.com
/parse-community/parse-server
package
Sources
- CVE List CVE-2026-30967
- GitHub Advisory GHSA-fr88-w35c-r596
- NVD CVE-2026-30967
- OSV BIT-parse-2026-30967
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.