Incorrect Regular Expression

Overview litestar is a Litestar - A production-ready, highly performant, extensible ASGI API Framework Affected versions of this package are vulnerable to Incorrect Regular Expression via the allowedhosts host validation. An attacker can gain unauthorized access by supplying a specially crafted...

CVE-2026-25479 Litestar has an AllowedHosts validation bypass due to unescaped regex metacharacters in configured host patterns

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, in litestar.middleware.allowedhosts, allowlist entries are compiled into regex patterns in a way that allows regex metacharacters to retain special meaning e.g., . matches any character. This enables a bypass...

CVE-2026-25479

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, in litestar.middleware.allowedhosts, allowlist entries are compiled into regex patterns in a way that allows regex metacharacters to retain special meaning e.g., . matches any character. This enables a bypass...

CVE-2026-25479

Litestar is an ASGI framework. Prior to 2.20.0, litestar.middleware.allowed_hosts compiles allowlist entries into regex patterns in a way that lets regex metacharacters retain special meaning (e.g., . matches any character). This can enable a bypass where a host that matches the regex is not the ...

CVE-2026-25479 Litestar has an AllowedHosts validation bypass due to unescaped regex metacharacters in configured host patterns

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, in litestar.middleware.allowedhosts, allowlist entries are compiled into regex patterns in a way that allows regex metacharacters to retain special meaning e.g., . matches any character. This enables a bypass...

CVE-2026-25478 Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

CVE-2026-25478

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

GHSA-93PH-P7V4-HWH4 Litestar's AllowedHosts has a validation bypass due to unescaped regex metacharacters in configured host patterns

Summary AllowedHosts host validation can be bypassed because configured host patterns are turned into regular expressions without escaping regex metacharacters notably .. A configured allowlist entry like example.com can match exampleXcom Details In litestar.middleware.allowedhosts, allowlist...

Litestar's AllowedHosts has a validation bypass due to unescaped regex metacharacters in configured host patterns

Summary AllowedHosts host validation can be bypassed because configured host patterns are turned into regular expressions without escaping regex metacharacters notably .. A configured allowlist entry like example.com can match exampleXcom Details In litestar.middleware.allowedhosts, allowlist...

GHSA-2P2X-HPG8-CQP2 Litestar's CORS origin allowlist has a bypass due to unescaped regex metacharacters in allowed origins

Summary CORS origin validation can be bypassed because the allowed-origins allowlist is compiled into a regex without escaping metacharacters notably .. An allowed origin like https://good.example can match https://goodXexample, resulting in Access-Control-Allow-Origin being set for an untrusted...

PT-2026-7136

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, in litestar.middleware.allowed hosts, allowlist entries are compiled into regex patterns in a way that allows regex metacharacters to retain special meaning e.g., . matches any character. This enables a bypass...

PT-2026-7135

Name of the Vulnerable Software and Affected Versions Litestar versions prior to 2.20.0 Description Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to version 2.20.0, the CORS origin validation process can be bypassed. This occurs because the allowed-origins allowlist i...

Linux Distros Unpatched Vulnerability : CVE-2025-68157

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack's HTTPS resolver HttpUriPlugin enforces...

CVE-2025-68458

Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTPS resolver HttpUriPlugin can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo username:password@host. If allowedUris...

CVE-2025-68157 webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects

Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTPS resolver HttpUriPlugin enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that...

CVE-2025-68157

Webpack vulnerability CVE-2025-68157 affects the HttpUriPlugin when experiments.buildHttp is enabled. From 5.49.0 through versions before 5.104.0, allowedUris are validated only for the initial URL; redirects (HTTP 30x) are not re-validated, allowing an import restricted to a trusted allow-list t...

CVE-2025-68157 webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects

Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTPS resolver HttpUriPlugin enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that...

CVE-2025-68157 webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects

Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTPS resolver HttpUriPlugin enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that...

CVE-2025-68157

Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTPS resolver HttpUriPlugin enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that...

CVE-2025-68458

Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTPS resolver HttpUriPlugin can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo username:password@host. If allowedUris...