CVE-2026-33376

HIGH

CVSS v3.1: 7.4 · EPSS: 0.0001 (2.7 percentile)

NetworkNo privilegesNo user interactionVendor advisory ref

Source data as of:

At a glance

Severity
HIGH
CVSS
7.4 v3.1 · NVD
EPSS
0.0001 (2.7 percentile) · FIRST.org
CISA KEV
No
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Affected vendors
grafana
Published
2026-05-13 · Modified: 2026-06-02
References
Jump to references (1)

CVSS / EPSS / KEV

CVSS v3.1 7.4 / 10 HIGH Source: NVD
EPSS 0.0001 2.7 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

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.

Record details

CVE ID
CVE-2026-33376
CVSS (v3.1)
7.4 (HIGH)
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability subscore
2.2
Impact subscore
5.2
EPSS
0.0001 (2.7 percentile) — 2026-06-03
CISA KEV
No
Weakness (CWE)
CWE-1188
Affected vendors
grafana
Affected configurations (CPE)
13
Published
2026-05-13
Modified
2026-06-02
Status
Analyzed

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same affected vendor

CVE-2026-33377 HIGH CVSS 7.1 CVE-2026-28379 MEDIUM CVSS 6.5 CVE-2026-28380 MEDIUM CVSS 6.5 CVE-2026-28383 MEDIUM CVSS 6.5

Published the same year

CVE-2026-0072 CRITICAL CVSS 10.0 CVE-2026-40965 CRITICAL CVSS 10.0 CVE-2026-7312 CRITICAL CVSS 10.0 CVE-2026-40089 CRITICAL CVSS 9.9
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