Traefik Affected by BasicAuth Middleware Timing Attack Allows Username Enumeration

Summary There is a potential vulnerability in Traefik's BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taking 166ms. When the username does not exist, the response returns immediatel...

EUVD-2026-13664

Traefik Affected by BasicAuth Middleware Timing Attack Allows Username Enumeration...

Timing Attack

Overview github.com/traefik/traefik/v2/pkg/middlewares/auth is a Cloud Native Application Proxy. Affected versions of this package are vulnerable to Timing Attack via the BasicAuth middleware. An attacker can enumerate valid usernames by measuring the response time differences when submitting...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the BasicAuth middleware. An attacker can enumerate valid usernames by measuring the response time differences when submitting authentication requests. Remediation Upgrade...

SUSE-SU-2026:20769-1 Security update for ovmf

This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441...

CVE-2026-32595

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-33129

H3 is a minimal HTTP framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison !==. This allows an attacker to deduce the valid password character-by-character by measuring the server...

CVE-2026-32595

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-32595 Traefik: BasicAuth Middleware Timing Attack Allows Username Enumeration

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-32595 Traefik: BasicAuth Middleware Timing Attack Allows Username Enumeration

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-32595 Traefik: BasicAuth Middleware Timing Attack Allows Username Enumeration

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-32595

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-32595

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taki...

CVE-2026-32595

Traefik vulnerability CVE-2026-32595 affects the BasicAuth middleware in multiple releases. When a submitted username exists, a bcrypt comparison runs ~166 ms; if the username does not exist, the response is ~0.6 ms. This timing difference enables an unauthenticated attacker to distinguish valid ...

CVE-2026-33129 h3 has an observable timing discrepancy in basic auth utils

H3 is a minimal HTTP framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison !==. This allows an attacker to deduce the valid password character-by-character by measuring the server...

CVE-2026-33129

H3 is a minimal HTTP framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison !==. This allows an attacker to deduce the valid password character-by-character by measuring the server...

CVE-2026-33129

The CVE-2026-33129 issue affects the H3 minimal HTTP framework. A Timing Side-Channel exists in the requireBasicAuth function due to unsafe string comparison (!==), enabling an attacker to deduce the valid password character-by-character by measuring response times and bypass password protections...

CVE-2026-33129 h3 has an observable timing discrepancy in basic auth utils

H3 is a minimal HTTP framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison !==. This allows an attacker to deduce the valid password character-by-character by measuring the server...

CVE-2026-33129 h3 has an observable timing discrepancy in basic auth utils

H3 is a minimal HTTP framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison !==. This allows an attacker to deduce the valid password character-by-character by measuring the server...

Timing Attack

Overview phpseclib/phpseclib is a PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc. Affected versions of this package are vulnerable to Timing Attack via the AES algorithm in CBC mode. An attacker can recover sensitive information by exploiting timin...