CVE-2026-34835

Rack exposes a vulnerability in Rack::Request where Host header parsing uses an AUTHORITY regex that accepts characters not allowed by RFC hostnames (e.g., /, ?, #, @). Versions affected: 3.0.0.beta1 through 3.1.20, and 3.2.0 through 3.2.5. This can allow host header poisoning when apps rely on r...

CVE-2026-34835

Rack is a modular Ruby web server interface. From versions 3.0.0.beta1 to before 3.1.21, and 3.2.0 to before 3.2.6, Rack::Request parses the Host header using an AUTHORITY regular expression that accepts characters not permitted in RFC-compliant hostnames, including /, ?, , and @. Because req.hos...

CVE-2026-32762

Rack is a modular Ruby web server interface. Vulnerability CVE-2026-32762 affects Rack::Utils.forwarded_values in versions 3.0.0.beta1–3.1.20 and 3.2.0–3.2.5, where the Forwarded header is parsed by splitting on semicolons before handling quoted values. Because semicolons may appear inside quoted...

CVE-2026-32762 Rack: Forwarded Header semicolon injection enables Host and Scheme spoofing

Rack is a modular Ruby web server interface. From versions 3.0.0.beta1 to before 3.1.21 and 3.2.0 to before 3.2.6, Rack::Utils.forwardedvalues parses the RFC 7239 Forwarded header by splitting on semicolons before handling quoted-string values. Because quoted values may legally contain semicolons...

CVE-2026-32762 Rack: Forwarded Header semicolon injection enables Host and Scheme spoofing

Rack is a modular Ruby web server interface. From versions 3.0.0.beta1 to before 3.1.21 and 3.2.0 to before 3.2.6, Rack::Utils.forwardedvalues parses the RFC 7239 Forwarded header by splitting on semicolons before handling quoted-string values. Because quoted values may legally contain semicolons...

CVE-2026-32762 Rack: Forwarded Header semicolon injection enables Host and Scheme spoofing

Rack is a modular Ruby web server interface. From versions 3.0.0.beta1 to before 3.1.21 and 3.2.0 to before 3.2.6, Rack::Utils.forwardedvalues parses the RFC 7239 Forwarded header by splitting on semicolons before handling quoted-string values. Because quoted values may legally contain semicolons...

Always-Incorrect Control Flow Implementation

Overview Affected versions of this package are vulnerable to Always-Incorrect Control Flow Implementation due to the misinterpretation of the PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms configuration, which causes unintended ECDSA algorithms to be accepted. An attacker can compromise...

CVE-2026-34083 signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-34083 signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-34083

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-34083

Signal K Server (signalk-server) prior to v2.24.0 contains a code-level vulnerability in its OIDC login/logout flow where an unvalidated HTTP Host header is used to construct the OAuth2 redirect_uri. Because redirectUri is silently unset by default, an attacker can spoof the Host header to direct...

CVE-2026-34083 signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-34801 Endian Firewall /manage/dhcp/fixed_leases/ remark Stored Cross-Site Scripting

Endian Firewall version 3.3.25 and prior allow stored cross-site scripting XSS via the remark parameter to /manage/dhcp/fixedleases/. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page...

CVE-2026-5333

A security flaw has been discovered in DefaultFuction Content-Management-System 1.0. This issue affects some unknown processing of the file /admin/tools.php. The manipulation of the argument host results in command injection. The attack can be executed remotely. The exploit has been released to t...

CVE-2026-5333 DefaultFuction Content-Management-System tools.php command injection

A security flaw has been discovered in DefaultFuction Content-Management-System 1.0. This issue affects some unknown processing of the file /admin/tools.php. The manipulation of the argument host results in command injection. The attack can be executed remotely. The exploit has been released to t...

CVE-2026-5333 DefaultFuction Content-Management-System tools.php command injection

A security flaw has been discovered in DefaultFuction Content-Management-System 1.0. This issue affects some unknown processing of the file /admin/tools.php. The manipulation of the argument host results in command injection. The attack can be executed remotely. The exploit has been released to t...

CVE-2026-5333

CVE-2026-5333 affects DefaultFuction Content-Management-System 1.0. The issue is a command-injection vulnerability caused by manipulation of the host argument in the file /admin/tools.php. It can be exploited remotely. The connected sources consistently describe the vulnerability as affecting thi...

CVE-2026-5333 DefaultFuction Content-Management-System tools.php command injection

A security flaw has been discovered in DefaultFuction Content-Management-System 1.0. This issue affects some unknown processing of the file /admin/tools.php. The manipulation of the argument host results in command injection. The attack can be executed remotely. The exploit has been released to t...

USN-8144-1: Undertow vulnerability

It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain unintended access to user sessions...

USN-8144-1 undertow vulnerability

It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain unintended access to user sessions...