Red Hat Security Advisory: libreswan security update

{
  "id": "ef149bc7b88c1aa8c37f68cc162d7dd351c6af1c99424228a08457b165b9f8fb",
  "url": "https://osv.dev/vulnerability/RHSA-2026%3A84887",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Red Hat Security Advisory: libreswan security update",
    "summary": "Red Hat Security Advisory: libreswan security update",
    "evidence": "osv:RHSA-2026:84887",
    "products": [
      {
        "name": {
          "value": "libreswan",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:4.3-6.el8_4.2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libreswan",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:4.3-6.el8_4.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RHSA-2026:84887",
      "aliases": [
        "RHSA-2026:84887"
      ],
      "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": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:4.3-6.el8_4.2"
                }
              ]
            }
          ],
          "package": {
            "name": "libreswan",
            "purl": "pkg:rpm/redhat/libreswan",
            "ecosystem": "Red Hat:rhel_aus:8.4::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84887.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:4.3-6.el8_4.2"
                }
              ]
            }
          ],
          "package": {
            "name": "libreswan",
            "purl": "pkg:rpm/redhat/libreswan",
            "ecosystem": "Red Hat:rhel_eus_long_life:8.4::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84887.json"
          }
        }
      ],
      "modified": "2026-10-20T10:31:43.071694973Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-14957",
        "CVE-2026-50721",
        "CVE-2026-50722"
      ],
      "references": [
        "https://access.redhat.com/errata/RHSA-2026:84887",
        "https://access.redhat.com/security/updates/classification/#moderate",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2494147",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2494148",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2501764",
        "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_84887.json",
        "https://access.redhat.com/security/cve/CVE-2026-14957",
        "https://www.cve.org/CVERecord?id=CVE-2026-14957",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-14957",
        "https://libreswan.org/security/CVE-2026-14957/",
        "https://libreswan.org/security/CVE-2026-14957/CVE-2026-14957.txt",
        "https://access.redhat.com/security/cve/CVE-2026-50721",
        "https://www.cve.org/CVERecord?id=CVE-2026-50721",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-50721",
        "https://libreswan.org/security/CVE-2026-50721/",
        "https://libreswan.org/security/CVE-2026-50721/CVE-2026-50721.txt",
        "https://lists.libreswan.org/archives/list/swan-announce@lists.libreswan.org/thread/7BZBYREBGXFPS4TSWOZX37WABRZVLK74/",
        "https://access.redhat.com/security/cve/CVE-2026-50722",
        "https://www.cve.org/CVERecord?id=CVE-2026-50722",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-50722",
        "https://libreswan.org/security/CVE-2026-50722",
        "https://libreswan.org/security/CVE-2026-50722/",
        "https://libreswan.org/security/CVE-2026-50722/CVE-2026-50722.txt"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-14957",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-50721",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-50722",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379146,
  "published_at": "2026-10-20T10:17:56+00:00"
}