CVE-2026-53523

Summary (CVE-2026-53523) Nezha Monitoring (self-hosted monitoring/O&M tool) has an issue in its OAuth2 flow. The vulnerability affects the getRedirectURL function in oauth2.go (lines 22–29), where the OAuth2 callback URL is built by concatenating the request Host header with a fixed path without ...

CVE-2026-53523 Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.2.0, the getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero...

PT-2026-49004

Name of the Vulnerable Software and Affected Versions Nezha Monitoring versions 1.0.0 through 2.1.x Description The getRedirectURL function in oauth2.go constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path without validating the Host header. This allows...

CVE-2026-4096

Summary of CVE-2026-4096 (IBM DevOps Plan) IBM DevOps Plan versions 3.0.0 to 3.0.6 are affected by an HTTP header injection vulnerability caused by improper validation of the Host header. This can enable attacker-driven attacks such as cross-site scripting, cache poisoning, or session hijacking a...

CVE-2026-4096 A vulnerability has been identified in IBM DevOps Plan that allows a Host Header Injection attack due to improper handling of the Host header in HTTP requests.

IBM DevOps Plan 3.0.0 through 3.0.6 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking...

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...

GHSA-3QMC-CJ7Q-62HV 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...

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-2026-21826

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-2026-29199

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-2026-43935

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-2026-21826

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. 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

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

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...

HCL Digital Experience和HCL Digital Experience Compose 安全漏洞

HCL Digital Experience and HCL Digital Experience Compose are both products of the Indian company HCL. HCL Digital Experience is a digital experience platform and content delivery solution. HCL Digital Experience Compose is an enterprise-level content creation and digital experience management...

Security Bulletin: A vulnerability has been identified in IBM DevOps Plan that allows a Host Header Injection attack due to improper handling of the Host header in HTTP requests. (CVE-2026-4096)

Summary A vulnerability has been identified in IBM DevOps Plan that allows a Host Header Injection attack due to improper handling of the Host header in HTTP requests. Version 3.0.7 addresses the vulnerability. Vulnerability Details CVEID:CVE-2026-4096 DESCRIPTION: IBM DevOps Plan is vulnerable t...

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-2026-43935 e107: Host Header Injection in e107 password reset enables phishing

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...