CVE-2026-30939
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.13 and 9.5.1-alpha.2, an unauthenticated attacker can crash the Parse Server process by calling a Cloud Function endpoint with a prototype property name as the function name. The server recurses infinitely, causing a call stack size error that terminates the process. Other prototype property names bypass Cloud Function dispatch validation and return HTTP 200 responses, even though no such Cloud Functions are defined. The same applies to dot-notation traversal. All Parse Server deployments that expose the Cloud Function endpoint are affected. This vulnerability is fixed in 8.6.13 and 9.5.1-alpha.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
parse-servernpm | < 8.6.13 | 8.6.13 |
parse-servernpm | >= 9.0.0-alpha.1, < 9.5.1-alpha.2 | 9.5.1-alpha.2 |
Affected products
5cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*+ 1 more
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*range: <8.6.13
- cpe:2.3:a:parseplatform:parse-server:9.5.1:alpha1:*:*:*:node.js:*:*
- osv-coords2 versions
< 8.6.13+ 1 more
- (no CPE)range: < 8.6.13
- (no CPE)range: < 8.6.13
- Range: < 8.6.13
Patches
Vulnerability mechanics
References
5- github.com/parse-community/parse-server/security/advisories/GHSA-5j86-7r7m-p8h6nvdMitigationPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-5j86-7r7m-p8h6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-30939ghsaADVISORY
- github.com/parse-community/parse-server/releases/tag/8.6.13nvdProductRelease NotesWEB
- github.com/parse-community/parse-server/releases/tag/9.5.1-alpha.2nvdProductRelease NotesWEB
News mentions
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