Grafana 2.x, 3.x, and 4.x before 4.6.4 and 5.x before 5.2.3 allows authentication bypass…
Priority HIGH 77CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 fixed, 3 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-287.
Summary
Grafana 2.x, 3.x, and 4.x before 4.6.4 and 5.x before 5.2.3 allows authentication bypass because an attacker can generate a valid "remember me" cookie knowing only a username of an LDAP or OAuth user.
Why it matters now
EPSS 0.63124 99th percentileScored 2026-11-07
Fix Partial github.com/grafana/grafana (Go): 4.6.4, 5.2.3Red Hat: 2 advisoriesRed Hat: 3 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/grafana/grafana (Go) | before 4.6.4 | 4.6.4 | Patch available | GHSA-rgjg-66cx-5x9m |
| — | github.com/grafana/grafana (Go) | 5.0.0 to before 5.2.3 | 5.2.3 | Patch available | GHSA-rgjg-66cx-5x9m |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/grafana/grafana (Go) Vendor— Affected before 4.6.4 Fixed in 4.6.4 Patch available GHSA-rgjg-66cx-5x9m
- github.com/grafana/grafana (Go) Vendor— Affected 5.0.0 to before 5.2.3 Fixed in 5.2.3 Patch available GHSA-rgjg-66cx-5x9m
Remediation
- Fix · GHSA-rgjg-66cx-5x9m github.com/grafana/grafana (Go) Fixed in 4.6.4 Advisory →
- Fix · GHSA-rgjg-66cx-5x9m github.com/grafana/grafana (Go) Fixed in 5.2.3 Advisory →
Red Hat 2 advisories
- RHSA-2019:0019 Released 2019-01-03 · Red Hat rating Moderategrafana security and bug fix update
- Red Hat Ceph Storage 3.2 Tools grafana-5.2.4-1.el7cp
- RHSA-2018:3829 Released 2018-12-17 · Red Hat rating ModerateRHGS WA security and bug fix update
- Red Hat Gluster 3.4 Web Administration Node Agent on RHEL-7 tendrl-gluster-integration-1.6.3-13.el7rhgs, tendrl-node-agent-1.6.3-11.el7rhgs
- Red Hat Gluster 3.4 Web Administration on RHEL-7 grafana-4.6.4-1.el7rhgs, tendrl-ansible-1.6.3-10.el7rhgs, tendrl-api-1.6.3-8.el7rhgs +5
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ceph Storage 2 | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 8 (Liberty) Operational Tools | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 9 (Mitaka) Operational Tools | Affected | No fix planned: Will not fix |
| Red Hat Ceph Storage 3.2 Tools | Fixed | RHSA-2019:0019 |
| Red Hat Gluster 3.4 Web Administration Node Agent on RHEL-7 | Fixed | RHSA-2018:3829 |
| Red Hat Gluster 3.4 Web Administration on RHEL-7 | Fixed | RHSA-2018:3829 |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15727
- 2026-10-03 Alias added: GHSA-rgjg-66cx-5x9m
References
Patch 1
Sources
- CVE-2018-15727 · CVE Program
- CVE-2018-15727 · NVD
- FIRST EPSS
- GHSA-rgjg-66cx-5x9m · GitHub Advisory Database · CC BY 4.0
- CVE-2018-15727 · Red Hat security data · CC BY 4.0
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