CVE Catalog

CVE-2026-33376

HighCVSS 7.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

18th percentile - higher than 18% of all known CVEs

Summary

The vulnerability affects the Auth Proxy feature, which defaults to using /32 IPv6 addresses. Addresses specifying a mask explicitly are not affected by this vulnerability.

Risk Assessment

Organizations may be exposed to unauthorized access if they do not add the appropriate mask to the IPv6 allow-list.

Recommendation

It is recommended to add the appropriate mask (usually /128) to the IPv6 allow-list to mitigate the risk.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS