CVE-2026-33376
Last modified
CVE-2026-33376 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to the addresses. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Grafana | Grafana | >= 8.5.0, < 11.6.14 |
| Grafana | Grafana | >= 12.2.0, < 12.2.8 |
| Grafana | Grafana | >= 12.3.0, < 12.3.6 |
| Grafana | Grafana | >= 12.4.0, < 12.4.3 |
| Grafana | Grafana | 11.6.14 |
| Grafana | Grafana | 12.2.8 |
| Grafana | Grafana | 12.3.6 |
| Grafana | Grafana | 12.4.3 |
| Grafana | Grafana | 13.0.0 |
| Grafana | Grafana | 13.0.1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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