What’s Vulnerable › Vulnerabilities

CVE-2026-109302: Parse Server 8.2.2 before 8.6.94 and 9.0.0 before 9.10.1-alpha.14 GraphQL Schema Disclosure via Persisted Queries

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-15
• Weakness: CWE-863

Description

Parse Server 8.2.2 before 8.6.94 and 9.0.0 before 9.10.1-alpha.14 applies its GraphQL introspection control only to operation text sent directly with a request, not to operations resolved from Apollo Server's automatic persisted query cache. Unauthenticated attackers holding the public Application Id and client key can replay an introspection query previously cached by a master or maintenance key client to retrieve the schema, including private class and field names.

Affected products

• parse-community parse-server: from 9.0.0 before 9.10.1-alpha.14; from 8.2.2 before 8.6.94 — fixed in 8.6.94, 9.10.1-alpha.14

How to fix

Upgrade to a fixed version: parse-community parse-server 8.6.94, 9.10.1-alpha.14. Check the vendor advisory for mitigations.

References

• https://github.com/parse-community/parse-server/security/advisories/GHSA-gxxq-pghq-9vrc
• https://www.vulncheck.com/advisories/parse-server-8.2.2-before-8.6.94-and-9.0.0-before-9.10.1-alpha.14-graphql-schema-disclosure-via-persisted-queries

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