Cross-Origin Request Vulnerability in Parse Server by Parse Community
CVE-2026-34373

5.3MEDIUM

Key Information:

Vendor

Parse-community

Status
Parse-server
Vendor
CVE Published:
31 March 2026

What is CVE-2026-34373?

Prior to versions 8.6.66 and 9.7.0-alpha.10, Parse Server's GraphQL API endpoint did not enforce the allowOrigin server option, allowing unrestricted cross-origin requests from any domain. This flaw compromises security by disregarding configured restrictions, enabling unwanted interactions with the API. In contrast, the REST API correctly adheres to the allowOrigin settings. This vulnerability has been addressed in subsequent releases.

Affected Version(s)

parse-server < 8.6.66 < 8.6.66

parse-server >= 9.0.0, < 9.7.0-alpha.10 < 9.0.0, 9.7.0-alpha.10

References

https://github.com/parse-community/parse-server/security/...
x_refsource_CONFIRM
https://github.com/parse-community/parse-server/pull/10334
x_refsource_MISC
https://github.com/parse-community/parse-server/pull/10335
x_refsource_MISC

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.