CVE-2026-32248

CRITICAL

9.8

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.12 and 8.6.38, an unauthenticated attacker can take over any user account that was created with an authentication provider that does not validate the format of the user identifier (e.g. anonymous authentication). By sending a crafted login request, the attacker can cause the server to perform a pattern-matching query instead of an exact-match lookup, allowing the attacker to match an existing user and obtain a valid session token for that user's account. Both MongoDB and PostgreSQL database backends are affected. Any Parse Server deployment that allows anonymous authentication (enabled by default) is vulnerable. This vulnerability is fixed in 9.6.0-alpha.12 and 8.6.38.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/12/2026

Last Modified3/13/2026

Sourcenvd

Honeypot Sightings0

Affected Products

parseplatform:parse-server

Weaknesses (CWE)

CWE-943

References

https://github.com/parse-community/parse-server/releases/tag/8.6.38(security-advisories@github.com)

https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.12(security-advisories@github.com)

https://github.com/parse-community/parse-server/security/advisories/GHSA-5fw2-8jcv-xh87(security-advisories@github.com)

IOC Correlations

No correlations recorded

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