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Vulnerability DatabaseCVE-2026-23527

CVE-2026-23527: 
JavaScript vulnerability analysis and mitigation

H3 is a minimal H(TTP) framework built for high performance and portability. Prior to 1.15.5, there is a critical HTTP Request Smuggling vulnerability. readRawBody is doing a strict case-sensitive check for the Transfer-Encoding header. It explicitly looks for "chunked", but per the RFC, this header should be case-insensitive. This vulnerability is fixed in 1.15.5.

Source: NVD

Related JavaScript vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-34156CRITICAL9.9
  • JavaScriptJavaScript
  • @nocobase/plugin-workflow-javascript
NoYesMar 30, 2026
CVE-2026-34363HIGH8.2
  • JavaScriptJavaScript
  • parse-server
NoYesMar 30, 2026
CVE-2026-33949HIGH8.1
  • JavaScriptJavaScript
  • @tinacms/graphql
NoYesMar 30, 2026
CVE-2026-34043MEDIUM5.9
  • JavaScriptJavaScript
  • serialize-javascript
NoYesMar 31, 2026
CVE-2026-34373MEDIUM5.3
  • JavaScriptJavaScript
  • parse-server
NoYesMar 30, 2026

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