CVE-2026-47248

Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL validation-error messages. An unauthenticated caller who knows only the public application id can iteratively send malformed queries to reconstruct class names, field names, argument names, mutation names, and input-object fields. This issue has been patched in versions 8.6.78 and 9.9.1-alpha.2.

Scores

Weaknesses (CWE)

• CWE-209

Advisories

• GHSA-8cph-rgr4-g5vj — Parse Server's GraphQL "Did you mean ...?" validation suggestions disclose schema to unauthenticated callers

European references

• ENISA EUVD · EUVD-2026-36534
• GCVE · GCVE-0-2026-47248

Affected products

References

• https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj
• https://github.com/parse-community/parse-server/pull/10467
• https://github.com/parse-community/parse-server/pull/10468

Sources