CVE-2026-6790

In Eclipse Jetty, HTTP/1 requests to HTTP/1.3 (HTTP/2/3 included) do not enforce that the request authority (host and port) matches the Host header when present. This mismatch can affect URI redirects, virtual host selection, reverse proxying, and logs. The issue is described across CVE sources (...

CVE-2026-59882

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost to disagree with the URI authority used for security ...

CVE-2026-59882 guzzlehttp/psr7: Host Confusion via Weak URI Host Validation

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost to disagree with the URI authority used for security ...

PT-2026-56500

Name of the Vulnerable Software and Affected Versions guzzlehttp/psr7 versions prior to 2.12.3 Description The Uri::assertValidHost function fails to reject URI host components that contain authority delimiters, embedded ports, or malformed IPv6 brackets. This discrepancy allows Uri::getHost to...

Astra Linux – Vulnerability in HAPProxy

A issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. This issue can lead to a situation where the HTTP Host header is controlled by an attacker, due to a mismatch between the Host field and its corresponding authority value being mishandled...

Unity Linux 20.1060e / 20.1070e Security Update: haproxy (UTSA-2026-017416)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017416 advisory. An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host heade...

SUSE CVE-2021-39242

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled...

haproxy: it can lead to a situation with an attacker-controlled HTTP Host header because a mismatch between Host and authority is mishandled

haproxy was found to be vulnerable to HTTP host header attack: This problem creates a scenario in which it's possible to drop the Host header and use the authority only after forwarding to a second http2 layer, possibly causing two differing values of Host at a different stage. The highest threat...

haproxy: it can lead to a situation with an attacker-controlled HTTP Host header because a mismatch between Host and authority is mishandled

haproxy was found to be vulnerable to HTTP host header attack: This problem creates a scenario in which it's possible to drop the Host header and use the authority only after forwarding to a second http2 layer, possibly causing two differing values of Host at a different stage. The highest threat...

DEBIAN-CVE-2021-39242

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled...

CVE-2021-39242

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled...

Haproxy HAProxy 安全漏洞

Haproxy HAProxy is an open source TCP/HTTP load balancing server from the French company HAProxy Haproxy. The server provides Layer 4 and Layer 7 proxies and can support tens of thousands of connection levels with high efficiency and stability. A security vulnerability exists in HAProxy, which...

PT-2021-7493 · Haproxy +2 · Haproxy +2

Name of the Vulnerable Software and Affected Versions: HAProxy versions 2.2 before 2.2.16 HAProxy versions 2.3 before 2.3.13 HAProxy versions 2.4 before 2.4.3 Description: The issue is related to a mismatch between Host and authority being mishandled, which can lead to an attacker-controlled HTTP...