CVE-2026-34532
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending "prototype.constructor" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.
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.11 | 9.7.0-alpha.11 |
parse-servernpm | < 8.6.67 | 8.6.67 |
Affected products
13cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:*+ 10 more
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*: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: <8.6.67
- osv-coords2 versions
< 8.6.67+ 1 more
- (no CPE)range: < 8.6.67
- (no CPE)range: >= 9.0.0, < 9.7.0-alpha.11
Patches
Vulnerability mechanics
References
7- github.com/parse-community/parse-server/commit/4fc48cf28f22eea200d74d883505f485234a48d7nvdPatchWEB
- github.com/parse-community/parse-server/commit/dc59e272665644083c5b7f6862d88ce1ef0b2674nvdPatchWEB
- github.com/parse-community/parse-server/pull/10342nvdIssue TrackingPatchWEB
- github.com/parse-community/parse-server/pull/10343nvdIssue TrackingPatchWEB
- github.com/parse-community/parse-server/security/advisories/GHSA-vpj2-qq7w-5qq6nvdPatchVendor AdvisoryMitigationWEB
- github.com/advisories/GHSA-vpj2-qq7w-5qq6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34532ghsaADVISORY
News mentions
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