CVE-2026-12704
6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Grafana | Grafana Enterprise | 11.6.0 <= 11.6.17 | affected |
| Grafana | Grafana Enterprise | 12.2.0 <= 12.2.11 | affected |
| Grafana | Grafana Enterprise | 12.3.0 <= 12.3.11 | affected |
| Grafana | Grafana Enterprise | 12.4.0 <= 12.4.10 | affected |
| Grafana | Grafana Enterprise | 13.0.0 <= 13.0.7 | affected |
| Grafana | Grafana Enterprise | 13.1.0 <= 13.1.4 | affected |
| Grafana | Grafana Enterprise | 13.2.0 <= 13.2.0 | affected |
Weaknesses
- CWE-294: CWE-294
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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