CVE-2026-33376

Summary

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 Software

VendorProductVersion RangeStatus
GrafanaGrafana OSS9.4.0 <= 11.6.14affected
GrafanaGrafana OSS11.6.14 < 11.6.14+security-04affected
GrafanaGrafana OSS12.0.0 <= 12.2.8affected
GrafanaGrafana OSS12.2.8 < 12.2.8+security-04affected
GrafanaGrafana OSS12.3.0 <= 12.3.6affected
GrafanaGrafana OSS12.3.6 < 12.3.6+security-04affected
GrafanaGrafana OSS12.4.0 <= 12.4.3affected
GrafanaGrafana OSS12.4.3 < 12.4.3+security-02affected
GrafanaGrafana OSS13.0.0 <= 13.0.1affected
GrafanaGrafana OSS13.0.1 < 13.0.1+security-01affected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References