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...

CVE-2026-6333

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13 fail to validate the Host header when constructing response URLs for custom slash commands which allows an authenticated attacker to redirect slash command responses to an attacker-controlled server via a spoofed Host header.. Mattermost...

CVE-2026-41130

Craft CMS is a content management system CMS. In versions on the 4.x branch through 4.17.8 and the 5.x branch through 5.9.14, the resource-js endpoint in Craft CMS allows unauthenticated requests to proxy remote JavaScript resources. When trustedHosts is not explicitly restricted default...

CVE-2026-10269

A security vulnerability has been detected in decolua 9router up to 0.4.0. This issue affects the function isAuthenticated of the file src/dashboardGuard.js of the component HTTP Header Handler. The manipulation of the argument Host leads to improper authorization. The attack is possible to be...

CVE-2026-39963

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the serendipitysetCookie function in include/functionsconfig.inc.php uses $SERVER'HTTPHOST' without validation as the domain parameter of setcookie. An attacker who can influence the Host header at login time, such as vi...

CVE-2026-43935

e107 is a content management system CMS. Prior to 2.3.4, a Host Header Injection vulnerability in the password reset page allows attackers to manipulate the Host header to generate password reset links pointing to attacker-controlled domains. This can lead to phishing attacks, account takeover, o...

CVE-2026-45055

CubeCart is an ecommerce software solution. Prior to 6.7.2, CubeCart 6.6.x – 6.7.1 builds CCSTOREURL directly from the Host request header at bootstrap, with no allowlist. The constant is embedded verbatim into transactional email links, most critically the password-reset link in...

CVE-2026-42602

azureauthextension is the Azure Authenticator Extension. From 0.124.0 to 0.150.0, a server-side authentication bypass in azureauthextension allows any party who holds a single valid Azure access token for any scope the collector's configured identity can mint for to authenticate to any...

CVE-2026-40905

LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, a password reset poisoning vulnerability was identified in the application due to improper trust of user-controlled HTTP headers. The application uses the X-Forwarded-Host header when generating password reset URLs. By...

CVE-2026-48126

Algernon is a small self-contained pure-Go web server. Prior to 1.17.8, when algernon is started with --domain or --letsencrypt, which silently turns on --domain at engine/flags.go:372, the request handler resolves the served directory by joining the configured --dir with the value of the...

CVE-2026-39971

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the email sending functionality in include/functions.inc.php inserts $SERVER'HTTPHOST' directly into the Message-ID SMTP header without validation, and the existing sanitization function serendipityisResponseClean is not...

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...

EUVD-2026-34787

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-2026-21826 HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection

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-2026-21826

CVE-2026-21826 affects HCL Digital Experience and HCL Digital Experience Compose. The root cause is likely improper handling of the Host header, enabling an attacker to manipulate the Host header and cause the application to behave in unexpected ways. The CVSS 3.1 vector indicates: Network attack...

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-2026-21826 HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection

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...