Vulnerability · Published Jun 12, 2026 · Assigned by GitHub_M
CVE-2026-47248Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers
Medium 6.9
In plain English
A medium-severity security flaw in parse-server from parse-community. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | parse-server | 9.9.1-alpha.2 | GHSA-8cph-rgr4-g5vj |
| npm | parse-server | 8.6.78 | GHSA-8cph-rgr4-g5vj |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| parse-community | parse-server | < 8.6.78>= 9.0.0, < 9.9.1-alpha.2 |
Weakness: CWE-209 · 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
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj x_refsource_CONFIRM
- https://github.com/parse-community/parse-server/pull/10467 x_refsource_MISC
- https://github.com/parse-community/parse-server/pull/10468 x_refsource_MISC