Go, OpenSSL, Apple, LibreSSL, pyca, wolfSSL Name-Constraint Inconsistency in RFC 5280 Implementation

Overview This note covers differences in how TLS libraries interpret X.509 Name Constraints. A certificate that one library accepts may be rejected by another. Some of those differences are defects; others follow from behavior that RFC 5280 does not fully specify. Description The observed...

NPM: fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority

NPM: fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority vulnerability discovered by ? in WordPress Npm fast-uri versions 2.4.5...

GHSA-58MR-GQGX-XQ4G fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority

Impact fast-uri accepts a host that contains an unbalanced or misplaced authority bracket or without reporting an error. A host that starts with but does not end with , such as @127.0.0.1, is neither validated as an IP literal nor canonicalized as a domain name, so parse returns it as the host wi...

CVE-2026-84394 fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority

fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse returns it as the ho...

CVE-2026-84394 fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority

fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse returns it as the ho...

CVE-2026-84394 fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority

fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse returns it as the ho...

CVE-2026-84394

fast-uri (a URI parsing library used by the Fastify ecosystem) contains a host confusion vulnerability: when a URI's authority contains an opening bracket [ without a matching closing bracket ], parse() returns the string as the host without error. Neither an IP literal nor a valid domain name is...

CVE-2026-84292

fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can inject authority delimiters, demoting the intended host t...

fast-uri: fast-uri: URI authority bypass due to improper delimiter handling

A flaw was found in fast-uri. A remote attacker could exploit this vulnerability by crafting a malicious Uniform Resource Identifier URI that contains percent-encoded authority delimiters. The fast-uri library incorrectly decodes these delimiters during normalization and then re-emits them as raw...

DEBIAN-CVE-2026-59882

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost to disagree with the URI authority used for security ...

CVE-2026-59882 guzzlehttp/psr7: Host Confusion via Weak URI Host Validation

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost to disagree with the URI authority used for security ...

Important: Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update

An update is now available for Red Hat Ansible Automation Platform 2.6 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

Oracle Siebel Server prior to 25.7 (October 2025 CPU)

The versions of Oracle Siebel CRM installed on the remote host are affected by multiple vulnerabilities as referenced in the October 2025 CPU advisory. - An excessive memory use issue CWE-770 exists in Email-MIME, before version 1.954, which can cause denial of service when parsing multipart MIME...

PT-2024-8548

Name of the Vulnerable Software and Affected Versions Eclipse Jetty affected versions not specified Description The HttpURI class in Eclipse Jetty does insufficient validation on the authority segment of a URI, which can lead to differences in how it handles invalid URIs compared to common...

CVE-2021-41084

http4s is an open source scala interface for HTTP. In affected versions http4s is vulnerable to response-splitting or request-splitting attacks when untrusted user input is used to create any of the following fields: Header names Header.nameå, Header values Header.value, Status reason phrases...

Updated httpcomponents-client packages fix a security vulnerability

Priyank Nigam discovered that HttpComponents Client could misinterpret malformed authority component in a request URI and pick the wrong target host for request execution CVE-2020-13956...

DEBIAN-CVE-2020-13956

Apache HttpClient versions prior to version 4.5.13 and 5.0.3 can misinterpret malformed authority component in request URIs passed to the library as java.net.URI object and pick the wrong target host for request execution...