CVE-2019-20894

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Published Jul 2, 2020 CVSS 3.1 · 7.5 High EPSS 1.6% KEV · Not listed

Description

Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-2101	Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.
Github GHSA	GHSA-q9mp-79cp-9g8j	Improper Authentication

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 1.6% (1.557% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/containous/traefik/issues/5312

History

No history.

Subscriptions

Traefik Traefik

Weaknesses

CWE-295

Sources

CVE record Updated: Aug 5, 2024, 2:53 AM

Status: PUBLISHED
Assigner: mitre
Published: Jul 2, 2020, 3:30 PM
Updated: Aug 5, 2024, 2:53 AM
Reserved: Jul 2, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 2:31 AM

Status: Modified
Published: Jul 2, 2020, 4:15 PM
Modified: Jun 17, 2026, 2:31 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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