Soup Sieve has Memory Exhaustion via Large Comma-Separated Selector Lists

Date Jul 9, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product PyPI ยท soupsieve
CVE CVE-2026-49476
High-risk advisory CVE-2026-49476

Summary

Soup Sieve has Memory Exhaustion via Large Comma-Separated Selector Lists

Why it matters

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

Operator check

Check whether soupsieve 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.