Critical severity · published Mar 12, 2026
CVE-2026-32248
Parse Server: Account takeover via operator injection in authentication data identifier
9.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
parse-server · parse-community
>= 9.0.0, < 9.6.0-alpha.12; < 8.6.38 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32248
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32248
Release Notes
https://github.com/parse-community/parse-server/releases/tag/8.6.38
Release Notes
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.12
Vendor Advisory
https://github.com/parse-community/parse-server/security/advisories/GHSA-5fw2-8jcv-xh87
More from parse-server
10.0
CVE-2026-30966
Parse Server role escalation and CLP bypass via direct `_Join` table write
9.8
CVE-2026-31871
Parse Server has a SQL Injection via dot-notation sub-key name in `Increment` operation on PostgreSQL
9.8
CVE-2026-31856
Parse Server has a SQL injection via `Increment` operation on nested object field in PostgreSQL
9.8
CVE-2026-31840
Parse Server has a SQL injection via dot-notation field name in PostgreSQL
9.8
CVE-2026-30863
Parse Server: JWT audience validation bypass in Google, Apple, and Facebook authentication adapters