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CVE-2026-12704— CVE-2026-12704 CVE Record

Quick assessment

Affected
Grafana Grafana Enterprise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

当在 Grafana Enterprise 中启用 SAML IdP 发起的登录时，SAML 库会跳过对所有 SAML 响应（包括 SP 发起的登录）中 字段的验证。这会移除重放攻击防护，使得攻击者若获取到一条有效的已签名 SAML 断言，便可重放该断言，从而以受害者用户的身份建立会话。仅那些启用了 SAML 设置的实例受影响；该设置默认关闭，且 Grafana OSS 不受影响。

CVSS 6.8 · Medium
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I. Basic Information for CVE-2026-12704

Vulnerability Information
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Vulnerability Title
CVE-2026-12704 CVE Record
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Grafana Grafana Enterprise 11.6.0 ~ 11.6.17 -

II. Public POCs for CVE-2026-12704

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III. Intelligence Information for CVE-2026-12704

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Other References for CVE-2026-12704 (1)

Same Patch Batch · Grafana · 2026-09-02 · 3 CVEs total

CVE-2026-14199 7.1 HIGH CVE-2026-14199 CVE Record
CVE-2026-19475 6.5 MEDIUM CVE-2026-19475 CVE Record

IV. Related Vulnerabilities

Same product: Grafana Enterprise
Same vendor: Grafana
Same weakness: CWE-294

V. Comments for CVE-2026-12704

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