DEBIAN-CVE-2026-89044

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    DEBIAN-CVE-2026-89044

    Published: 10 Sept 2026Last Modified: 11 Sept 2026
    Upstream:
    CVE-2026-89044

    Summary:

    Details: Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding headers across multiple lines or use values like 'chunked, xchunked' to bypass validation and decode messages as chunked when the final coding is not chunked, enabling request smuggling attacks.

    References: https://security-tracker.debian.org/tracker/CVE-2026-89044

    Affected packages

    Package

    Name: netty

    Purl: pkg:deb/debian/netty?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1:4.1.48-10
    1:4.1.48-11
    1:4.1.48-12
    1:4.1.48-13
    1:4.1.48-14
    1:4.1.48-15
    1:4.1.48-16
    1:4.1.48-7
    1:4.1.48-7+deb12u1
    1:4.1.48-7+deb12u2
    1:4.1.48-8
    1:4.1.48-9

    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
    DEBIAN-CVE-2026-89044 | CVE-DB