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CVE-2026-12704: CWE-294 in Grafana Grafana Enterprise

0
Medium
VulnerabilityCVE-2026-12704cvecve-2026-12704cwe-294
Published: 09/02/2026 (09/02/2026, 16:05:42 UTC)
Source: CVE Database V5
Vendor/Project: Grafana
Product: Grafana Enterprise

Description

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 v3.1

Score 6.8medium

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected software

Affected versions
=11.6.0=12.2.0=12.3.0=12.4.0=13.0.0=13.1.0=13.2.011.6.012.2.012.3.012.4.013.0.013.1.013.2.0

Technical Details

Data Version
5.2
Assigner Short Name
GRAFANA
Date Reserved
2026-06-19T10:24:45.152Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a984d61acd9273b4973eaa0

Added to database: 09/02/2026, 16:22:57 UTC

Last updated: 09/03/2026, 01:58:04 UTC

Views: 13

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