{
  "schema_version": "1.7.0",
  "id": "RHSA-2026:61752",
  "related": [],
  "upstream": [
    "CVE-2026-7598",
    "CVE-2026-58050",
    "CVE-2026-66032",
    "CVE-2026-66034"
  ],
  "published": "2026-09-01T10:28:36Z",
  "modified": "2026-09-01T10:28:36Z",
  "summary": "Red Hat Security Advisory: libssh2 security update",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "name": "libssh2",
        "ecosystem": "Red Hat:rhel_els:7",
        "purl": "pkg:rpm/redhat/libssh2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "0:1.8.0-4.el7_9.2"
            }
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          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "libssh2-devel",
        "ecosystem": "Red Hat:rhel_els:7",
        "purl": "pkg:rpm/redhat/libssh2-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:1.8.0-4.el7_9.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:61752"
    },
    {
      "type": "ARTICLE",
      "url": "https://access.redhat.com/security/updates/classification/#important"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464597"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493955"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506857"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506860"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_61752.json"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-7598"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-7598"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7598"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/pull/1858"
    },
    {
      "type": "ARTICLE",
      "url": "https://vuldb.com/submit/805564"
    },
    {
      "type": "ARTICLE",
      "url": "https://vuldb.com/vuln/360555"
    },
    {
      "type": "ARTICLE",
      "url": "https://vuldb.com/vuln/360555/cti"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-58050"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-58050"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58050"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/bikini/exploitarium/tree/main/libssh2-publickey-list-calc-poc"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/blob/master/src/publickey.c"
    },
    {
      "type": "ARTICLE",
      "url": "https://www.vulncheck.com/advisories/libssh2-integer-overflow-in-publickey-subsystem-attribute-allocation"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-66032"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-66032"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66032"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/commit/5e4776146552d898b9c0e1b313cd093fa8dc92d0"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/pull/2180"
    },
    {
      "type": "ARTICLE",
      "url": "https://www.vulncheck.com/advisories/libssh2-double-free-heap-corruption-via-sftp-open"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-66034"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-66034"
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66034"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/commit/a13bb6c773f0d55ad1628cede57e99803cd898d9"
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    {
      "type": "ARTICLE",
      "url": "https://github.com/libssh2/libssh2/pull/2202"
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      "url": "https://www.vulncheck.com/advisories/libssh2-heap-out-of-bounds-read-via-publickey-subsystem"
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}