parse-community parse-server up to 8.6.25/9.5.2-alpha.12 ldap injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in parse-community parse-server up to 8.6.25/9.5.2-alpha.12. The affected element is an unknown function. Performing a manipulation results in ldap injection. This vulnerability is cataloged as CVE-2026-31828. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in parse-community parse-server up to 8.6.25/9.5.2-alpha.12. It has been classified as critical. This affects an unknown functionality. The manipulation with an unknown input leads to a ldap injection vulnerability. CWE is classifying the issue as CWE-90. The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-31828 since 03/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 8.6.26 or 9.0.0 9.5.2-alpha.13 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• parse-community

Name

• parse-server

Version

• 8.6.0
• 8.6.1
• 8.6.2
• 8.6.3
• 8.6.4
• 8.6.5
• 8.6.6
• 8.6.7
• 8.6.8
• 8.6.9
• 8.6.10
• 8.6.11
• 8.6.12
• 8.6.13
• 8.6.14
• 8.6.15
• 8.6.16
• 8.6.17
• 8.6.18
• 8.6.19
• 8.6.20
• 8.6.21
• 8.6.22
• 8.6.23
• 8.6.24
• 8.6.25
• 9.5.2-alpha.0
• 9.5.2-alpha.1
• 9.5.2-alpha.2
• 9.5.2-alpha.3
• 9.5.2-alpha.4
• 9.5.2-alpha.5
• 9.5.2-alpha.6
• 9.5.2-alpha.7
• 9.5.2-alpha.8
• 9.5.2-alpha.9
• 9.5.2-alpha.10
• 9.5.2-alpha.11
• 9.5.2-alpha.12

Website

• Product: https://github.com/parse-community/parse-server/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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