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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2026-33376

Auth Proxy IPv6 whitelist bypass

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Grafana Grafana OSS

Default version status: unaffected

  • 9.4.0 to ≤ 11.6.14affected
  • 11.6.14 to < 11.6.14+security-04affected
  • 12.0.0 to ≤ 12.2.8affected
  • 12.2.8 to < 12.2.8+security-04affected
  • 12.3.0 to ≤ 12.3.6affected
  • 12.3.6 to < 12.3.6+security-04affected
  • 12.4.0 to ≤ 12.4.3affected
  • 12.4.3 to < 12.4.3+security-02affected
  • 13.0.0 to ≤ 13.0.1affected
  • 13.0.1 to < 13.0.1+security-01affected

References