BIT-gitlab-2026-112212

    Dashboard / Vulnerabilities / BIT-gitlab-2026-112212

    BIT-gitlab-2026-112212

    Published: 29 Oct 2026Last Modified: 29 Oct 2026

    Summary: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab

    Details: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have poisoned a shared cache's OAuth/OIDC discovery document to redirect certain flows to an externally controlled server, due to improper trust of user-supplied values when constructing endpoint URLs in cached discovery responses.

    References: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/, https://gitlab.com/gitlab-org/gitlab/-/work_items/627499, https://nvd.nist.gov/vuln/detail/CVE-2026-112212

    Affected packages

    Package

    Name: gitlab

    Purl: pkg:bitnami/gitlab

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 18.3.0
    Fixed -19.3.6

    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
    BIT-gitlab-2026-112212 | CVE-DB