{"action":"Upgrade heimdal to 7.4.0-r4 or later.","affected":[{"fixed":"7.4.0-r4","introduced":"0"}],"component":"heimdal","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.7","exploited":false,"fixed_versions":["7.4.0-r4"],"id":"tcs_01M5NB6SZAMY1VVEZV73Z6RJ7K","modified_at":"2026-09-21T06:17:52.462045462Z","published_at":"2019-05-15T23:29:00.277Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2019-12098","https://security.alpinelinux.org/vuln/CVE-2019-12098"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2019-12098#Alpine:v3.7/heimdal","url":"https://osv.dev/vulnerability/ALPINE-CVE-2019-12098"}],"summary":"In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack. This issue is in krb5_init_creds_step in lib/krb5/init_cred"}