Gnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binder

{
  "id": "2577f2993c0be8e20f42108d7afbdd9161e2b2a12f91cad75cf1a289ba03f9fb",
  "url": "https://osv.dev/vulnerability/CVE-2026-1584",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Gnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binder",
    "summary": "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.",
    "evidence": "osv:CVE-2026-1584",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-1584",
      "aliases": [
        "CVE-2026-1584"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gnutls/gnutls",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1584.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.502900495Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/downloads/content/package-browser/",
        "https://catalog.redhat.com/software/containers/",
        "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1584.json",
        "https://access.redhat.com/errata/RHSA-2026:7477",
        "https://access.redhat.com/security/cve/CVE-2026-1584",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1584.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-1584",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2435258",
        "https://gitlab.com/gnutls/gnutls"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "redhat",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "3.8.12-1.1.hum1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "InverseAffectedRanges"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1584.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-1584",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509007,
  "published_at": "2026-04-09T18:00:21.184+00:00"
}