GO-2026-4977

    Dashboard / Vulnerabilities / GO-2026-4977

    GO-2026-4977

    Published: 7 May 2026Last Modified: 10 Sept 2026

    Summary: Quadratic string concatenation in consumePhrase in net/mail

    Details: Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

    References: https://go.dev/issue/78987, https://go.dev/cl/771520, https://groups.google.com/g/golang-announce/c/qcCIEXso47M

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.25.10

    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