UBUNTU-CVE-2026-33376

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Source

https://ubuntu.com/security/CVE-2026-33376

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33376.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-33376

Upstream

CVE-2026-33376

Published

2026-05-13T20:16:00Z

Modified

2026-05-20T22:02:58.709073301Z

Severity

7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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.

References

Affected packages

Ubuntu:16.04:LTS / grafana

Package

Name: grafana
Purl: pkg:deb/ubuntu/grafana?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.6.0+dfsg-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.6.0+dfsg-1",
            "binary_name": "grafana"
        },
        {
            "binary_version": "2.6.0+dfsg-1",
            "binary_name": "grafana-data"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33376.json"