Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent

{
  "id": "bbcff8231dd2ee75513bef02c166c52ae1eae73753363dcf4b7eccbd30aeaeeb",
  "url": "https://osv.dev/vulnerability/CVE-2026-46598",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent",
    "summary": "For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.",
    "evidence": "osv:CVE-2026-46598",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-46598",
      "aliases": [
        "CVE-2026-46598",
        "GHSA-9m57-25v3-79x9",
        "GO-2026-5033"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/golang/crypto",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a1c0d9929856c8aba2b31f079340f00578eda803"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "0"
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                      {
                        "fixed": "0.52.0"
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                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
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            "v0.50.0",
            "v0.49.0",
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            "v0.46.0",
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            "v0.13.0",
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            "v0.10.0",
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            "v0.5.0",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46598.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.008898033Z",
      "provider": "osv",
      "references": [
        "https://go.dev/cl/781360",
        "https://go.dev/issue/79596",
        "https://groups.google.com/g/golang-announce/c/a082jnz-LvI",
        "https://pkg.go.dev",
        "https://pkg.go.dev/vuln/GO-2026-5033",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46598.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46598"
      ],
      "provider_metadata": {
        "cna_assigner": "Go",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.52.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46598.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-46598",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496888,
  "published_at": "2026-05-22T02:31:27.986+00:00"
}