PT-2026-40790 · Unknown+1 · Auth Proxy+1

Published 2026-05-13 · Updated 2026-07-06 · CVE-2026-33376

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description An issue exists in the Auth Proxy feature where IPv6 allow-lists default to /32 addresses. This behavior is specific to the Auth Proxy and does not impact other authentication methods such as Okta, SAML, or LDAP.

Recommendations Add the desired mask (typically /128) to the addresses in the IPv6 allow-list to ensure the correct mask is applied.

Exploit

Fix

Weakness Enumeration

CWE-1188

Related Identifiers

BDU:2026-07040

BIT-GRAFANA-2026-33376

CVE-2026-33376

OPENSUSE-SU-2026:10932-1

OPENSUSE-SU-2026:20940-1

SUSE-SU-2026:2768-1

SUSE-SU-2026:2774-1

Affected Products

Auth Proxy

Grafana

References · 158

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33376.json · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2026:10932-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:2768-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20940-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33376 · Vendor Advisory
• https://grafana.com/security/security-advisories/cve-2026-33376 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-33376 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-grafana-2026-33376 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-33376 · Security Note
• https://bdu.fstec.ru/vul/2026-07040 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:2774-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33376 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-33376 · Vendor Advisory
• https://bugzilla.suse.com/1262409 · Note
• https://bugzilla.suse.com/1261025 · Note