Traefik Labs 3.7.0-ea.1/3.7.14 Kubernetes Ingress NGINX Provider improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k2.33

Summaryinfo

A vulnerability, which was classified as critical, has been found in Traefik Labs Traefik 3.7.0-ea.1/3.7.14. Affected is an unknown function of the component Kubernetes Ingress NGINX Provider. Performing a manipulation results in improper authentication. This vulnerability is reported as CVE-2026-119572. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Traefik Labs Traefik 3.7.0-ea.1/3.7.14. This affects an unknown functionality of the component Kubernetes Ingress NGINX Provider. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Traefik from 3.7.0-ea.1 before 3.7.15 contains an authentication bypass vulnerability in the Kubernetes Ingress NGINX provider that silently disables mTLS configured via the auth-tls-secret annotation. When another Ingress declares a path on the same host without matching auth-tls settings, Traefik falls back to default TLS options, letting unauthenticated attackers reach backends requiring client certificates.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-119572 since 10/30/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.7.15 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.7
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Traefik 3.7.15

Timelineinfo

10/30/2026 Advisory disclosed
10/30/2026 +0 days CVE reserved
10/30/2026 +0 days VulDB entry created
10/30/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CNA: VulnCheck
CVE: CVE-2026-119572 (🔒)

GCVE (CVE): GCVE-0-2026-119572
GCVE (VulDB): GCVE-100-429087

Entryinfo

Created: 10/30/2026 14:33
Changes: 10/30/2026 14:33 (76)
Complete: 🔍
Cache ID: 216::103

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