CVE-2026-33376

highpriority · track · 0OT risk · elevatedEPSS 0.003 · 21 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (21st) EPSS

CVSS 7.4 · high

Is it mine?

41 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.4

v3.17.4highAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · security@grafana.comexploitability 2.2 · impact 5.2

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1188USCWE-1188US

affected products (41)

Products and version ranges known to be affected.

Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Grafana Grafana< 11.6.14+security-04cert_bundDE
Grafana Grafana< 12.2.8+security-04cert_bundDE
Grafana Grafana< 12.3.6+security-04cert_bundDE
Grafana Grafana< 12.4.3+security-02cert_bundDE
Grafana Grafana< 13.0.1+security-01cert_bundDE
Grafana Grafana OSS≤ 12.3.0 ≤12.3.6enisa_euvdEU
Grafana Grafana OSS≤ 13.0.0 ≤13.0.1enisa_euvdEU
Grafana Grafana OSS≤ 12.4.0 ≤12.4.3enisa_euvdEU
Grafana Grafana OSS≤ 9.4.0 ≤11.6.14enisa_euvdEU
Grafana Grafana OSS≤ 12.0.0 ≤12.2.8enisa_euvdEU
Grafana Grafana OSS11.6.14 → 11.6.14+security-04enisa_euvdEU
Grafana Grafana OSS12.2.8 → 12.2.8+security-04enisa_euvdEU
Grafana Grafana OSS12.3.6 → 12.3.6+security-04enisa_euvdEU
Grafana Grafana OSS12.4.3 → 12.4.3+security-02enisa_euvdEU
Grafana Grafana OSS13.0.1 → 13.0.1+security-01enisa_euvdEU

showing 20 of 41

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1546Grafana: Mehrere SchwachstellenDeutsch2026-05-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Grafana ausnutzen, um erweiterte Privilegien zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
BIT-grafana-2026-33376Auth Proxy IPv6 whitelist bypass2026-05-15vendor · osvUS
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.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund osv NVD CVE.org MITRE

published 2026-05-13modified 2026-10-26

references (4)

External citations — patches, advisories, analysis.

scry

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