Bad Things Also Come in Small Packages: A 38-byte DoS in fflate (CVE-2026-45820)
We discovered this new vulnerability as part of our abandoned-packages research. Despite what seems like a 2-year hiatus, fflate is one of the few popular npm packages that released a fix for the vulnerabilities we found merely using Sonnet-4.6, giving its 50M+ users a chance to upgrade to a safe version.