{"affected":[{"ecosystem":"https://gitlab.com/gnutls/gnutls","packageName":"gnutls","product":"","source":"CNA: redhat","vendor":"","versions":[{"status":"affected","version":"0"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"gnutls-main","product":"Red Hat Hardened Images","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"3.8.12-1.1.hum1","versionType":"rpm"}]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 10","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 6","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 9","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift/ose-rhel-coreos-8","product":"Red Hat OpenShift Container Platform 4","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift/ose-rhel-coreos-9","product":"Red Hat OpenShift Container Platform 4","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls-main","product":"Red Hat Hardened Images","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"3.8.12-1.1.hum1","versionType":"rpm"}]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 10","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 6","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 7","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 8","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"gnutls","product":"Red Hat Enterprise Linux 9","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift/ose-rhel-coreos-8","product":"Red Hat OpenShift Container Platform 4","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift/ose-rhel-coreos-9","product":"Red Hat OpenShift Container Platform 4","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:gnu:gnutls:-:*:*:*:*:*:*:*","vulnerable":true},{"criteria":"cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-1584","cwes":["CWE-476"],"description":"A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.","epss":{"date":"2026-11-04","percentile":0.7098,"score":0.01323},"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.5,"severity":"high","source":"ADP: redhat-SADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.5,"severity":"high","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.5,"severity":"high","source":"NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793830682857,"publishedAt":1775757621184,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:7477"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-1584"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2435258"},{"source":"ADP: redhat-SADP","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-1584"},{"source":"ADP: redhat-SADP","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2435258"},{"source":"ADP: redhat-SADP","tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1584.json"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:7477"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2026:7477"},{"source":"secalert@redhat.com","tags":["Vendor Advisory"],"url":"https://access.redhat.com/security/cve/CVE-2026-1584"},{"source":"secalert@redhat.com","tags":["Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2435258"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"url":"https://access.redhat.com/errata/RHSA-2026:7477"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":["Vendor Advisory"],"url":"https://access.redhat.com/security/cve/CVE-2026-1584"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":["Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2435258"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1584.json"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."},{"kind":"fix","source":"ADP: redhat-SADP","text":"RHSA-2026:7477: Red Hat Hardened Images"},{"kind":"workaround","source":"ADP: redhat-SADP","text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}],"revision":"1c0c35be4228a66b8d61fecf8494877fe2fadda8480860b0e6775823051ec536","sources":[{"modifiedAt":1793829578300,"name":"CNA: redhat","retrievedAt":1793830370671,"url":"https://www.cve.org/CVERecord?id=CVE-2026-1584"},{"modifiedAt":1793830682857,"name":"NVD","retrievedAt":1793837970534,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1584"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793830384666,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-1584"}],"ssvc":{"assessedAt":1775830186053,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Gnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binder","updatedAt":1793837970534}