CVE-2026-12704 Affecting grafana-13.2 package, versions <13.2.1-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.27% (20th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-GRAFANA132-19644488
  • published9 Sept 2026
  • disclosed2 Sept 2026

Introduced: 2 Sep 2026

NewCVE-2026-12704  (opens in a new tab)

How to fix?

Upgrade Minimos:latest grafana-13.2 to version 13.2.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana-13.2 package and not the grafana-13.2 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1