What’s Vulnerable › Vulnerabilities

CVE-2022-23469: Authorization header displayed in the debug logs

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-12-08 · updated 2026-06-17
• Weakness: CWE-200

Description

Traefik is an open source HTTP reverse proxy and load balancer. Versions prior to 2.9.6 are subject to a potential vulnerability in Traefik displaying the Authorization header in its debug logs. In certain cases, if the log level is set to DEBUG, credentials provided using the Authorization header are displayed in the debug logs. Attackers must have access to a users logging system in order for credentials to be stolen. This issue has been addressed in version 2.9.6. Users are advised to upgrade. Users unable to upgrade may set the log level to `INFO`, `WARN`, or `ERROR`.

Affected products

• Traefik: before 2.9.6 — fixed in 2.9.6

How to fix

Upgrade to a fixed version: Traefik 2.9.6. Check the vendor advisory for mitigations.

References

• https://github.com/traefik/traefik/pull/9574
• https://github.com/traefik/traefik/releases/tag/v2.9.6
• https://github.com/traefik/traefik/security/advisories/GHSA-h2ph-vhm7-g4hp
• https://github.com/traefik/traefik/pull/9574
• https://github.com/traefik/traefik/releases/tag/v2.9.6
• https://github.com/traefik/traefik/security/advisories/GHSA-h2ph-vhm7-g4hp

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