What’s Vulnerable › Vulnerabilities

CVE-2026-33539: Parse Server: SQL injection via aggregate and distinct field names in PostgreSQL adapter

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-24 · updated 2026-06-17
• Weakness: CWE-89

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.59 and 9.6.0-alpha.53, an attacker with master key access can execute arbitrary SQL statements on the PostgreSQL database by injecting SQL metacharacters into field name parameters of the aggregate $group pipeline stage or the distinct operation. This allows privilege escalation from Parse Server application-level administrator to PostgreSQL database-level access. Only Parse Server deployments using PostgreSQL are affected. MongoDB deployments are not affected. This issue has been patched in versions 8.6.59 and 9.6.0-alpha.53.

Affected products

• parse-community parse-server: before 8.6.59; from 9.0.0 before 9.6.0; 9.6.0-alpha1, 9.6.0-alpha10, 9.6.0-alpha11, 9.6.0-alpha12, 9.6.0-alpha13, 9.6.0-alpha14 (+46) — fixed in 8.6.59, 9.6.0

How to fix

Upgrade to a fixed version: parse-community parse-server 8.6.59, 9.6.0. Check the vendor advisory for mitigations.

References

• https://github.com/parse-community/parse-server/commit/03249f9bf5b8783c8b848f84dab791ff0b761b8c
• https://github.com/parse-community/parse-server/commit/bdddab5f8b61a40cb8fc62dd895887bdd2f3838e
• https://github.com/parse-community/parse-server/pull/10272
• https://github.com/parse-community/parse-server/pull/10273
• https://github.com/parse-community/parse-server/security/advisories/GHSA-p2w6-rmh7-w8q3

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