{"schemaVersion":3,"id":"CVE-2026-42304","aliases":["SUSE-SU-2026:22004-1","GHSA-grgv-6hw6-v9g4","PYSEC-2026-160","UBUNTU-CVE-2026-42304","USN-8380-1","DEBIAN-CVE-2026-42304","openSUSE-SU-2026:10759-1","CGA-78p2-3xqv-pw94","CGA-cc4x-q9gp-2r7m","CGA-ffg4-4r96-643r","CGA-g6rr-hjf3-v39w"],"status":"published","duplicateOf":null,"title":null,"description":"Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.4.0rc2, the twisted.names module is vulnerable to a Denial of Service (DoS) attack via resource exhaustion during DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS packet containing deeply chained compression pointers. This flaw bypasses previous loop-prevention logic, causing the single-threaded Twisted reactor to hang while processing millions of recursive lookups, effectively freezing the server. 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