CVE-2026-40036 Unfurl < 2026.04 - Denial of Service via Unbounded zlib Decompression

Unfurl before 2026.04 contains an unbounded zlib decompression vulnerability in parsecompressed.py that allows remote attackers to cause denial of service. Attackers can submit highly compressed payloads via URL parameters to the /json/visjs endpoint that expand to gigabytes, exhausting server...