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          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "products": [
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.x86_64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.x86_64",
            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-08-05T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-58051"
    },
    {
      "cve": "CVE-2026-66032",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-66032"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "libssh2 through 1.11.1, fixed in commit 5e47761, contains a double-free vulnerability in the sftp_open() function in src/sftp.c that allows a malicious SSH server to corrupt the heap of any authenticated client opening an SFTP session. When a server responds to SSH_FXP_OPEN with SSH_FXP_STATUS containing FX_OK, the response data buffer is freed, and if a subsequent sftp_packet_require() call returns a specific error such as LIBSSH2_ERROR_CHANNEL_PACKET_EXCEEDED, the same pointer is freed a second time, enabling tcache dup conditions on glibc systems that allow overlapping allocations and function pointer overwrites.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
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          "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.x86_64"
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      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-66032",
          "url": "https://www.suse.com/security/cve/CVE-2026-66032"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1272737 for CVE-2026-66032",
          "url": "https://bugzilla.suse.com/1272737"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.x86_64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.x86_64",
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            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.x86_64"
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.x86_64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.x86_64",
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            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.x86_64"
          ]
        }
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          "category": "impact",
          "date": "2026-08-05T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-66032"
    },
    {
      "cve": "CVE-2026-66033",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-66033"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2_cipher_crypt() function in src/openssl.c that allows a malicious SSH server to crash any connecting client by negotiating AES-GCM ciphers during handshake. Attackers can exploit the underflow in the expression computing blocksize minus aadlen minus authentication tag length to trigger an out-of-bounds read and a memcpy call with a near-SIZE_MAX length argument, causing immediate process crash before any authentication occurs.",
          "title": "CVE description"
        }
      ],
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      "references": [
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          "category": "external",
          "summary": "CVE-2026-66033",
          "url": "https://www.suse.com/security/cve/CVE-2026-66033"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1272736 for CVE-2026-66033",
          "url": "https://bugzilla.suse.com/1272736"
        }
      ],
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        {
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            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.ppc64le",
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.x86_64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.aarch64",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.s390x",
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          "date": "2026-08-05T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-66033"
    },
    {
      "cve": "CVE-2026-66034",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-66034"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability that allows a malicious SSH server to trigger an arbitrary-length heap out-of-bounds read and a free of an uninitialized pointer via the publickey subsystem. In libssh2_publickey_list_fetch(), the version 1 response parser reads a server-controlled comment_len value and advances the parse pointer without verifying sufficient bytes remain in the buffer, causing the out-of-bounds read to leak heap pointers from adjacent allocations defeating ASLR, followed by heap allocator state corruption when the error cleanup path frees an uninitialized pointer from a non-zeroed realloc() region.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
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          "openSUSE Tumbleweed:libssh2-devel-1.11.1-4.1.x86_64"
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          "category": "external",
          "summary": "CVE-2026-66034",
          "url": "https://www.suse.com/security/cve/CVE-2026-66034"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1272735 for CVE-2026-66034",
          "url": "https://bugzilla.suse.com/1272735"
        }
      ],
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        {
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          "product_ids": [
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            "version": "3.1"
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            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.ppc64le",
            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
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            "openSUSE Tumbleweed:libssh2-1-32bit-1.11.1-4.1.s390x",
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          "details": "important"
        }
      ],
      "title": "CVE-2026-66034"
    },
    {
      "cve": "CVE-2026-66035",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-66035"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packet_length smaller than the cipher\u0027s block size during Encrypt-then-MAC cipher negotiation. In the fullpacket() function in src/transport.c, the ETM path allocates a buffer of packet_length bytes but copies blocksize minus one bytes via memcpy, causing an overflow that on 32-bit glibc writes attacker-controlled bytes into an adjacent chunk\u0027s SIZE field, enabling tcache bin confusion, overlapping live objects, and function pointer overwrite during the session handshake before authentication.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "summary": "CVE-2026-66035",
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        },
        {
          "category": "external",
          "summary": "SUSE Bug 1272734 for CVE-2026-66035",
          "url": "https://bugzilla.suse.com/1272734"
        }
      ],
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        {
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            "openSUSE Tumbleweed:libssh2-1-1.11.1-4.1.s390x",
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          "date": "2026-08-05T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-66035"
    }
  ]
}