Threats Tagged 'bit-golang-2026-33810'

Red Hat has issued a security advisory for osbuild-composer, a service used to build customized OS artifacts including VM images and OSTree commits. The update addresses multiple security vulnerabilities in underlying Golang components, including certificate validation bypass, denial of service via crafted inputs, cross-site scripting, and other issues. These vulnerabilities affect various Golang packages such as crypto/x509, net/mail, mime, encoding/asn1, net/url, net/http, html/template, crypto/tls, and encoding/xml. The advisory includes fixes for these issues and some bug fixes and enhancements. A patch is available for affected Red Hat Enterprise Linux 10 and related products. No known exploits in the wild have been reported.

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.