Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header

Summary AllowedHostsMiddleware trusts the X-Forwarded-Host header as a fallback when the Host header is absent. Since X-Forwarded-Host is a client-controllable header, an attacker can bypass the allowed hosts validation by omitting the Host header and supplying an X-Forwarded-Host header set to a...

Reliance on Untrusted Inputs in a Security Decision

Overview litestar is a Litestar - A production-ready, highly performant, extensible ASGI API Framework Affected versions of this package are vulnerable to Reliance on Untrusted Inputs in a Security Decision through the AllowedHostsMiddleware in the host validation middleware. An attacker can bypa...

PT-2026-48543

Name of the Vulnerable Software and Affected Versions Litestar version 3.0.0b0 Description AllowedHostsMiddleware trusts the X-Forwarded-Host header as a fallback when the Host header is absent. Because X-Forwarded-Host is client-controllable, an attacker can bypass allowed hosts validation by...

Weak Password Recovery Mechanism for Forgotten Password

Overview limesurvey/limesurvey is a FOSS online survey tool on the web. Affected versions of this package are vulnerable to Weak Password Recovery Mechanism for Forgotten Password through the password reset process. An attacker can gain unauthorized access to user accounts by submitting a passwor...

GHSA-5C37-5J7W-8MH8 LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it.

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it.

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

CVE-2026-50635

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

CVE-2026-50635 LimeSurvey Password Reset Host Header Injection Discloses Reset Token

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

CVE-2026-50635

LimeSurvey Password Reset Host Header Injection: The system builds password-reset links from the client-supplied Host header without validating it; the default config leaves the allowlist undefined, so LSHttpRequest::checkIsAllowedHost() does nothing. A remote, unauthenticated attacker can reques...

CVE-2026-50635 LimeSurvey Password Reset Host Header Injection Discloses Reset Token

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

EUVD-2026-35769

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

LimeSurvey 授权问题漏洞

LimeSurvey PHPSurveyor is a set of open-source online survey programs developed by the LimeSurvey team. It supports functions such as survey program development, survey questionnaire publishing, and data collection. LimeSurvey has an authorization issue vulnerability, which stems from the lack of...

CVE-2026-50635: Weak Password Recovery Mechanism for Forgotten Password

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

PT-2026-48152

Name of the Vulnerable Software and Affected Versions LimeSurvey affected versions not specified Description LimeSurvey constructs account password-reset links using the HTTP Host header provided by the client without proper validation. Because the allowedHosts allowlist is undefined in the defau...

Flask-AppBuilder ConfigurationHandler Redirect

The vulnerability of the Flask-AppBuilder web development framework lies in the redirection of URLs to unreliable websites. Exploiting this vulnerability allows a malicious actor to remotely redirect users to arbitrary URL addresses by manipulating the Host header in HTTP requests...

Amazon Linux 2023 : perl-HTTP-Tiny, perl-HTTP-Tiny-tests (ALAS2023-2026-1765)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1765 advisory. HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values. The unvalidated inputs are the method and URI in the request line, the URL host that...

CVE-2026-21826

HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection. An attacker can manipulate the Host header and cause the application to behave in unexpected ways...

CVE-2026-7010

HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values. The unvalidated inputs are the method and URI in the request line, the URL host that becomes the Host: header, and HTTP/1.1 control data field values. An attacker who controls one ...

CVE-2026-29199

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

CVE-2026-36604

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 does not validate the HTTP Host header, enabling DNS rebinding attacks. An external attacker can rebind a domain to the router's internal IP address, extending the CORS wildcard vulnerability Access-Control-Allow-Origin: to...