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CVE-2026-31828

MEDIUM CVSS 4.0: 6.0 EPSS 0.14%
Updated Mar 10, 2026
Bind
Parameter Value
CVSS 6.0 (MEDIUM)
Fixed In 9.5.2
Type CWE-90
Vendor Bind
Public PoC No

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.13 and 8.6.26, the LDAP authentication adapter is vulnerable to LDAP injection. User-supplied input (authData.id) is interpolated directly into LDAP Distinguished Names (DN) and group search filters without escaping special characters.

This allows an attacker with valid LDAP credentials to manipulate the bind DN structure and to bypass group membership checks. This enables privilege escalation from any authenticated LDAP user to a member of any restricted group. The vulnerability affects Parse Server deployments that use the LDAP authentication adapter with group-based access control.

This vulnerability is fixed in 9.5.2-alpha.13 and 8.6.26.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

CWE-90

References 3

https://github.com/parse-community/parse-server/releases/tag/8.6.26
security-advisories@github.com
https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
security-advisories@github.com
https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-f…
security-advisories@github.com
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