What’s Vulnerable › Vulnerabilities

CVE-2026-47248: Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-12 · updated 2026-10-26
• Weakness: CWE-209

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.

Affected products

• parse-community parse-server: before 8.6.78; from 9.0.0, < 9.9.1-alpha.2

References

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

Get alerted when CVE-2026-47248 or the next vulnerability affects your stack