Node.js CVE-2026-30972
HIGH
GHSA-775h-3xrc-c228
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit. Any Parse Server deployment that relies on the built-in rate limiting feature is affected. This vulnerability is fixed in 9.5.2-alpha.10 and 8.6.23.
AnalysisAI
Parse Server versions prior to 9.5.2-alpha.10 and 8.6.23 allow remote attackers to bypass rate limiting protections by submitting multiple requests within a single batch request, since batch processing routes requests internally and circumvents Express middleware controls. Deployments relying on built-in rate limiting are vulnerable to abuse and denial of service attacks. A patch is available in the specified versions.
Technical ContextAI
Classified as CWE-799 (Improper Control of Interaction Frequency). Affects Parse-Server. Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch r
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 9.5.2. Restrict network access to the affected service where possible.
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Same weakness CWE-799 – Improper Control of Interaction Frequency
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External POC / Exploit Code
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