CVE-2026-33376
HighCVSS 7.4Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% 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.
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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

