Django REST framework: Accept header with many large quoted parameters burns ~19s of CPU per request in content negot...

Date Oct 22, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product PyPI ยท djangorestframework
CVE CVE-2026-114138
High-risk advisory CVE-2026-114138

Summary

Django REST framework: Accept header with many large quoted parameters burns ~19s of CPU per request in content negotiation

Why it matters

GitHub has published a reviewed security advisory for djangorestframework. Prioritize it with other application dependency updates, especially because EPSS places it in the 36% percentile.

Operator check

Check whether djangorestframework is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.4%; percentile: 36%.

Sources

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