CVE-2026-34573
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.68 and 9.7.0-alpha.12, the GraphQL query complexity validator can be exploited to cause a denial-of-service by sending a crafted query with binary fan-out fragment spreads. A single unauthenticated request can block the Node.js event loop for seconds, denying service to all concurrent users. This only affects deployments that have enabled the requestComplexity.graphQLDepth or requestComplexity.graphQLFields configuration options. This issue has been patched in versions 8.6.68 and 9.7.0-alpha.12.
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 | >= 9.0.0, < 9.7.0-alpha.12 | 9.7.0-alpha.12 |
parse-servernpm | < 8.6.68 | 8.6.68 |
Affected products
14cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:*+ 11 more
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha11:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha1:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha2:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha3:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha4:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha5:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha6:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha7:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha8:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha9:*:*:*:node.js:*:*
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*range: <8.6.68
- osv-coords2 versions
< 8.6.68+ 1 more
- (no CPE)range: < 8.6.68
- (no CPE)range: >= 9.0.0, < 9.7.0-alpha.12
Patches
Vulnerability mechanics
References
7- github.com/parse-community/parse-server/commit/ea15412795f34594cc8a674fe858d445675e0295nvdPatchWEB
- github.com/parse-community/parse-server/commit/f759bda075298ec44e2b4fb57659a0c56620483bnvdPatchWEB
- github.com/parse-community/parse-server/pull/10344nvdIssue TrackingPatchWEB
- github.com/parse-community/parse-server/pull/10345nvdIssue TrackingPatchWEB
- github.com/parse-community/parse-server/security/advisories/GHSA-mfj6-6p54-m98cnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-mfj6-6p54-m98cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34573ghsaADVISORY
News mentions
0No linked articles in our index yet.