CVE-2026-30854 json
Parse Server: GraphQL `__type` introspection bypass via inline fragments when public introspection is disabled
published 2026-03-07 8 mo ago modified 2026-09-08 2 mo ago also BIT-parse-2026-30854 , EUVD-2026-10171 , GHSA-q5q9-2rhp-33qw
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- 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. From version 9.3.1-alpha.3 to before version 9.5.0-alpha.10, when graphQLPublicIntrospection is disabled, __type queries nested inside inline fragments (e.g. ... on Query { __type(name:"User") { name } }) bypass the introspection control, allowing unauthenticated users to perform type reconnaissance. __schema introspection is not affected. This issue has been patched in version 9.5.0-alpha.10.
Patch / fix
- npm parse-server 9.5.0-alpha.10
- bitnami parse 9.5.0
- parseplatform parse-server 9.5.0-alpha.10
- parseplatform parse_server 9.5.0-alpha.10
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | parse-server | >=9.3.1-alpha.3, <9.5.0-alpha.10 |
9.5.0-alpha.10 |
| bitnami | parse | >=9.3.1, <9.5.0 |
9.5.0 |
Affected products
- parse-community parse-server
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/parse-community/parse-server/security/advisories/GHSA-q5q9-2rhp-33qw
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-30854
advisory, web
-
github.com
/parse-community/parse-server
package
Sources
- CVE List CVE-2026-30854
- GitHub Advisory GHSA-q5q9-2rhp-33qw
- NVD CVE-2026-30854
- OSV BIT-parse-2026-30854
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.