CVE-2026-33810

highpriority · track · 33EPSS 0.003 · 27 %ileDEEUFRRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.34% (27th) EPSS

CVSS 8.2 · high

Is it mine?

126 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

cvss

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

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 4.2

v3.18.2highAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondaryexploitability 3.9 · impact 3.6

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:Lsecondaryexploitability 2.8 · impact 5.3

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295USprimaryCWE-1289USCWE-295US

affected products (126)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Google Container-Optimized OSall versionscert_bundDEcpe:/o:google:container-optimized_os:-
IBM Business Automation Workflowall versionscert_bundDEcpe:/a:ibm:business_automation_workflow:-
IBM Security Verify Accessall versionscert_bundDEcpe:/a:ibm:security_verify_access:-
Microsoft Azure Linux azl3all versionscert_bundDEcpe:/o:microsoft:azure_linux:azl3
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Ansible Automation Platform 2.5all versionscert_bundDEcpe:/a:redhat:ansible_automation_platform:2.5
Red Hat Ansible Automation Platform 2.6all versionscert_bundDEcpe:/a:redhat:ansible_automation_platform:2.6
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 10all versionscert_bundDEcpe:/o:redhat:enterprise_linux:10
Red Hat Enterprise Linux 10.0all versionscert_bundDEcpe:/o:redhat:enterprise_linux:10.0
Red Hat Enterprise Linux 10.0 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:10.0_extended_update_support
Red Hat Enterprise Linux 9.6all versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.6
Red Hat Enterprise Linux 9.6 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.6_extended_update_support
Red Hat Enterprise Linux Advanced Cluster Securityall versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security
Red Hat Enterprise Linux Edge Managerall versionscert_bundDEcpe:/o:redhat:enterprise_linux:edge_manager
Red Hat OpenShift API for Data Protectionall versionscert_bundDEcpe:/a:redhat:openshift:api_for_data_protection
Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
Red Hat OpenShift Network Observability 1.11.2all versionscert_bundDEcpe:/a:redhat:openshift:network_observability_1.11.2

showing 20 of 126

advisories (5)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1006Golang Go: Mehrere SchwachstellenDeutsch2026-04-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um Speicherbeschädigungen zu verursachen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.
WID-SEC-W-2026-2929Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-08-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, SQL-Injection-, serverseitige Request-Forgery- und Cross-Site-Scripting-Angriffe durchzuführen, sensible Informationen offenzulegen oder zu manipulieren, Denial-of-Service-Zustände auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.
BIT-golang-2026-33810Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x5092026-04-13vendor · osvUS
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
GO-2026-4866Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x5092026-04-07vendor · osvUS
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund certfr NVD CVE.org MITRE

published 2026-04-08modified 2026-09-10

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+1888 more

references (88)

External citations — patches, advisories, analysis.

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