Upstream information
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.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (Grafana Labs) | SUSE |
|---|---|---|
| Base Score | 6.8 | 6.8 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | High | High |
| Privileges Required | None | None |
| User Interaction | Required | Required |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | High |
| Integrity Impact | High | High |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | grafana | Affected |
| SUSE Manager Client Tools 15 | grafana | Affected |
| SUSE Manager Client Tools for SLE 15 | grafana | Affected |
| SUSE Multi-Linux Manager Client Tools for SLE 15 | grafana | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | grafana | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | grafana | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | grafana | Affected |
| openSUSE Leap 15.3 | grafana | Affected |
| openSUSE Leap 15.4 | grafana | Affected |
| openSUSE Leap 15.5 | grafana | Affected |
| openSUSE Leap 15.6 | grafana | Affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Multi Linux Manager Tools SLE-15 | grafana | Affected |
| Container Status | ||
| ses/7.1/ceph/grafana ses/7/ceph/grafana suse/multi-linux-manager/5.2/x86_64/monitoring-grafana | grafana | Affected |
SUSE Timeline for this CVE
CVE page created: Thu Sep 3 13:44:35 2026CVE page last modified: Thu Sep 3 15:33:54 2026