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twisted vulnerabilities

Vulnerabilities published for twisted in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1

  1. CVE-2026-42304

    High · CVSS 7.5EPSS 0.95%Fix available

    Twisted: Denial of Service (DoS) in twisted.names via Crafted DNS Compression Pointer Chains

    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. This vulnerability is fixed in 26.4.0rc2.

    twistedOperating systems
    • Update to 24.11.0-1ubuntu0.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

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