CVE-2026-33323
MEDIUM
6,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.51 and 9.6.0-alpha.40, the Pages route and legacy PublicAPI route for resending email verification links return distinguishable responses depending on whether the provided username exists and has an unverified email. This allows an unauthenticated attacker to enumerate valid usernames by observing different redirect targets. The existing emailVerifySuccessOnInvalidEmail configuration option, which is enabled by default and protects the API route against this, did not apply to these routes. This issue has been patched in versions 8.6.51 and 9.6.0-alpha.40.
204
Observable Response Discrepancy
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Access Control
Potential Impacts:
Read Application Data
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
https://github.com/parse-community/parse-server/commit/967aa57732202009b2389ce9…
https://github.com/parse-community/parse-server/commit/fbda4cb0c5cbc8fad08a2168…
https://github.com/parse-community/parse-server/pull/10238
https://github.com/parse-community/parse-server/pull/10243
https://github.com/parse-community/parse-server/security/advisories/GHSA-h29g-q…