CVE-2026-45013

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 have a password reset flow that constructs the reset URL using req.hostname, which is derived directly from the attacker-controlled HTTP Host header when apos.baseUrl is not explicitly configure...

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...

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...

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...

CVE-2026-53607

Technical details are not publicly available in the provided documents. Monitor for updates and confirm when patched versions or advisories are published.

CVE-2026-53607 @apostrophecms/file pretty-URL Vulnerable to Unauthenticated SSRF via Host header

ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, when prettyUrls: true is enabled on @apostrophecms/file a documented SEO feature for serving uploaded files at clean URLs, the public pretty-URL handler builds the upstream URL using the raw...

CVE-2026-53607 @apostrophecms/file pretty-URL Vulnerable to Unauthenticated SSRF via Host header

ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, when prettyUrls: true is enabled on @apostrophecms/file a documented SEO feature for serving uploaded files at clean URLs, the public pretty-URL handler builds the upstream URL using the raw...

EUVD-2026-36571

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 have a password reset flow that constructs the reset URL using req.hostname, which is derived directly from the attacker-controlled HTTP Host header when apos.baseUrl is not explicitly configure...

CVE-2026-45013 Apostrophe has a Weak Password Recovery Mechanism for Forgotten Password and Improper Input Validation

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 have a password reset flow that constructs the reset URL using req.hostname, which is derived directly from the attacker-controlled HTTP Host header when apos.baseUrl is not explicitly configure...

CVE-2026-45013 Apostrophe has a Weak Password Recovery Mechanism for Forgotten Password and Improper Input Validation

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 have a password reset flow that constructs the reset URL using req.hostname, which is derived directly from the attacker-controlled HTTP Host header when apos.baseUrl is not explicitly configure...

CVE-2026-45013

Summary (CVE-2026-45013) ApostropheCMS (Node.js) versions up to and including 4.29.0 are vulnerable in the password reset flow. The reset process builds URLs using req.hostname (derived from the attacker-controlled Host header) when apos.baseUrl is not configured, allowing an unauthenticated atta...

CVE-2026-45013 Apostrophe has a Weak Password Recovery Mechanism for Forgotten Password and Improper Input Validation

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 have a password reset flow that constructs the reset URL using req.hostname, which is derived directly from the attacker-controlled HTTP Host header when apos.baseUrl is not explicitly configure...

CVE-2026-48998

A flaw was found in guzzlehttp/psr7, a PHP library for HTTP messages. A remote attacker could exploit improper validation of the Host header. By providing a specially crafted Host header, an attacker could cause the system to misinterpret the intended destination. This could lead to requests or...

PT-2026-48991

Name of the Vulnerable Software and Affected Versions ApostropheCMS versions prior to 4.31.0 Description When the prettyUrls: true setting is enabled on the @apostrophecms/file module, the public pretty-URL handler constructs an upstream URL using the raw Host HTTP request header. This URL is the...

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...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via improper validation of the Host header when parsing raw HTTP request messages or deriving a server request URI from server variables. An attacker can manipulate the Host header to include URI authori...

HTTP Response Splitting

Overview Affected versions of this package are vulnerable to HTTP Response Splitting via the host component of a URI when constructing a PSR-7 Uri or Request. An attacker can inject arbitrary HTTP headers by supplying a crafted host value containing ASCII control characters, such as CRLF, which a...

EUVD-2026-36252

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...

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...