GHSA-45c3-73f7-pv4m

    Dashboard / Vulnerabilities / GHSA-45c3-73f7-pv4m

    GHSA-45c3-73f7-pv4m

    Published: 27 Oct 2026Last Modified: 27 Oct 2026

    Summary: dnspython dns.name.from_wire_parser() excessive CPU use

    Details: ### Impact A maliciously crafted DNS message may cause dns.name.from_wire_parser() to use excessive CPU for DNS name decompression. Applications that process untrusted DNS wire form messages with dnspython may be degraded or DoS'd by the extra CPU use required. ### Patches This problem is fixed in dnspython 2.9.0. ### Workarounds There are no known workarounds. ### Credit Evgenios Gkritsis, Department of Informatics, University of Piraeus & Athena Research Center, Greece Constantinos Patsakis, Department of Informatics, University of Piraeus & Athena Research Center, Greece George Stergiopoulos, Department of Informatics, Athens University of Economics and Business, Greece

    References: https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m, https://nvd.nist.gov/vuln/detail/CVE-2026-114605, https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023, https://github.com/rthalley/dnspython, https://github.com/rthalley/dnspython/releases/tag/v2.9.0

    Affected packages

    Package

    Name: dnspython

    Purl: pkg:pypi/dnspython

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.9.0

    Affected versions

    1.0.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High