GO-2025-3563

    Dashboard / Vulnerabilities / GO-2025-3563

    GO-2025-3563

    Published: 8 Apr 2025Last Modified: 17 Feb 2026

    Summary: Request smuggling due to acceptance of invalid chunked data in net/http

    Details: The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.

    References: https://go.dev/cl/652998, https://go.dev/issue/71988, https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.23.8

    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
    GO-2025-3563 | CVE-DB