react/http: A malformed HTTP chunked body can lead to a denial-of-service and peg the CPU

Date Sep 17, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Composer ยท react/http
CVE CVE-2026-84997
High-risk advisory CVE-2026-84997

Summary

react/http: A malformed HTTP chunked body can lead to a denial-of-service and peg the CPU

Why it matters

GitHub has published a reviewed security advisory for react/http. Prioritize it with other application dependency updates.

Operator check

Check whether react/http is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.