Traefik up to 2.6.0 TLS Configuration Host certificate validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Traefik up to 2.6.0. It has been rated as critical. This issue affects an unknown part of the component TLS Configuration Handler. The manipulation of the argument Host with an unknown input leads to a weak authentication vulnerability. Using CWE to declare the problem leads to CWE-295. The software does not validate, or incorrectly validates, a certificate. The impact remains unknown.

The weakness was released 02/17/2022 as GHSA-hrhx-6h34-j5hc. The advisory is shared at The identification of this vulnerability is CVE-2022-23632 since 01/19/2022. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 2.6.1 eliminates this vulnerability. The upgrade is hosted for download at Applying a patch is able to eliminate this problem. The bugfix is ready for download at The best possible mitigation is suggested to be upgrading to the latest version.



CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (GitHub, Inc.): 🔒



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


Class: Weak authentication
CWE: CWE-295
ATT&CK: T1587.003

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

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


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Traefik 2.6.1


01/19/2022 CVE reserved
02/17/2022 +29 days Advisory disclosed
02/17/2022 +0 days VulDB entry created
02/19/2022 +2 days VulDB last update


Advisory: GHSA-hrhx-6h34-j5hc
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2022-23632 (🔒)


Created: 02/17/2022 07:11 PM
Updated: 02/19/2022 01:50 PM
Changes: (2) advisory_confirm_url source_cve_nvd_summary
Complete: 🔍


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