GO-2026-6608

    Dashboard / Vulnerabilities / GO-2026-6608

    GO-2026-6608

    Published: 8 Oct 2026Last Modified: 8 Oct 2026

    Summary: Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart

    Details: Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.

    References: https://go.dev/cl/847307, https://go.dev/issue/81741, https://groups.google.com/g/golang-announce/c/U2fTuyDJznI

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.26.9

    Affected versions

    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