{"id":"ALSA-2026:29455","summary":"Important: buildah security update","details":"The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images.   \n\nSecurity Fix(es):  \n\n  * net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)\n  * crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)\n  * crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)\n  * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)\n  * golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters (CVE-2026-39829)\n  * golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses (CVE-2026-39830)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","modified":"2026-06-25T14:59:10.457865898Z","published":"2026-06-24T00:00:00Z","related":["CVE-2026-25679","CVE-2026-32280","CVE-2026-32281","CVE-2026-32283","CVE-2026-39829","CVE-2026-39830"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:29455"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-25679"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-32280"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-32281"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-32283"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-39829"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-39830"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2445356"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2456333"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2456338"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2456339"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2480681"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2480684"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-29455.html"}],"affected":[{"package":{"name":"buildah","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/buildah"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.43.1-2.el9_8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:29455.json"}},{"package":{"name":"buildah-tests","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/buildah-tests"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.43.1-2.el9_8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:29455.json"}}],"schema_version":"1.7.5"}