Vulnerabilities CVE-2026-33376

CVE-2026-33376

High

Open

TLP:CLEAR

Auth Proxy IPv6 whitelist bypass

NVD CVE.org

Critical Infrastructure

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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.

Details

CVSS Score: 7.4
EPSS Score ⓘ: 0.27%

19.1th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Confidence: 90%
Published: May 13, 2026
Last Modified: Aug 12, 2026

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