CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2020-27846
Critical (9.8). EPSS 4.9% chance of exploitation in the next 30 days. Fixed in github.com/crewjam/saml 0.4.3.
A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
- EPSS
- 4.9% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
- CWE
- CWE-115
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- grafana:grafana
- redhat:enterprise_linux
- redhat:openshift_container_platform
- redhat:openshift_service_mesh
- saml_project:saml
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-4hq8-gmxx-h6w9 | Go | github.com/crewjam/saml | <0.4.3 | 0.4.3 |
| GO-2021-0058 | Go | github.com/crewjam/saml | <0.4.3 | 0.4.3 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1907670
- https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9
- https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM/