CVE-2026-122267

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    CVE-2026-122267

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary:

    Details: MinIO Signature V4 verification before RELEASE.2026-09-22T19-25-18Z accepts unsigned x-amz-* headers, letting a presigned PUT URL be escalated into a cross-bucket read.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/122xxx/CVE-2026-122267.json, https://github.com/chainguard-forks/minio/security/advisories/GHSA-48rv-pgqh-mhjg, https://nvd.nist.gov/vuln/detail/CVE-2026-122267

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    RELEASE.2026-09-21T00-15-41Z

    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
    CVE-2026-122267 | CVE-DB