BIT-grafana-2026-12704

    Dashboard / Vulnerabilities / BIT-grafana-2026-12704

    BIT-grafana-2026-12704

    Published: 8 Sept 2026Last Modified: 9 Sept 2026

    Summary: SAML assertion replay via skipped InResponseTo validation

    Details: When SAML IdP-initiated login is enabled in Grafana Enterprise, the SAML library skips validation of the InResponseTo field on all SAML responses, including SP-initiated logins. This removes anti-replay protection, allowing an attacker who obtains a valid signed SAML assertion to replay it and gain a session as the victim user. Only instances with the allow_idp_initiated SAML setting enabled are affected; this setting is off by default and Grafana OSS is not affected.

    References: https://grafana.com/security/security-advisories/cve-2026-12704, https://nvd.nist.gov/vuln/detail/CVE-2026-12704

    Affected packages

    Package

    Name: grafana

    Purl: pkg:bitnami/grafana

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 11.6.0
    Fixed -12.4.11

    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-grafana-2026-12704 | CVE-DB