CVE-2026-34373
HIGHParse Server: GraphQL API endpoint ignores CORS origin restriction
Title source: cnaDescription
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.66 and 9.7.0-alpha.10, the GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly enforces the configured allowOrigin restriction. This issue has been patched in versions 8.6.66 and 9.7.0-alpha.10.
References (5)
Core 5
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/parse-community/parse-server/security/advisories/GHSA-q3p6-g7c4-829c
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/pull/10334
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/pull/10335
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/commit/0347641507891d0013ec57f7c10f012064f41263
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/commit/4dd0d3d8be1c39664c74ad10bb0abaa76bc41203
Scores
CVSS v3
8.8
EPSS
0.0020
EPSS Percentile
10.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-346
Status
published
Products (5)
npm/parse-server
9.0.0 - 9.7.0-alpha.10npm
parse-community/parse-server
< 8.6.66
parse-community/parse-server
>= 9.0.0, < 9.7.0-alpha.10
parseplatform/parse-server
9.7.0 alpha1 (9 CPE variants)
parseplatform/parse-server
3.5.0 - 8.6.66
Published
Mar 31, 2026
Tracked Since
Mar 31, 2026