Shescape: Quadratic-time denial of service in the flag-protection

Date Jul 24, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm · shescape
High-risk advisory

Summary

Shescape: Quadratic-time denial of service in the flag-protection

Why it matters

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

Operator check

Check whether shescape is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.7.

Sources

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