{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "elliptic-curves",
          "vendor": "RustCrypto",
          "versions": [
            {
              "status": "affected",
              "version": "= 0.14.0-pre.0"
            },
            {
              "status": "affected",
              "version": "= 0.14.0-rc.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "RustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-rc.0, a denial-of-service vulnerability exists in the SM2 public-key encryption (PKE) implementation: the decrypt() path performs unchecked slice::split_at operations on input buffers derived from untrusted ciphertext. An attacker can submit short/undersized ciphertext or carefully-crafted DER-encoded structures to trigger bounds-check panics (Rust unwinding) which crash the calling thread or process. This issue has been patched via commit e60e991."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20: Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-10T05:17:25.583Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8"
        },
        {
          "name": "https://github.com/RustCrypto/elliptic-curves/pull/1603",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/RustCrypto/elliptic-curves/pull/1603"
        },
        {
          "name": "https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab"
        }
      ],
      "source": {
        "advisory": "GHSA-j9xq-69pf-pcm8",
        "discovery": "UNKNOWN"
      },
      "title": "RustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKE"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-22700",
    "datePublished": "2026-01-10T05:17:25.583Z",
    "dateReserved": "2026-01-08T19:23:09.856Z",
    "dateUpdated": "2026-01-10T05:17:25.583Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-22700\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-01-10T06:15:52.517\",\"lastModified\":\"2026-01-10T06:15:52.517\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"RustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-rc.0, a denial-of-service vulnerability exists in the SM2 public-key encryption (PKE) implementation: the decrypt() path performs unchecked slice::split_at operations on input buffers derived from untrusted ciphertext. An attacker can submit short/undersized ciphertext or carefully-crafted DER-encoded structures to trigger bounds-check panics (Rust unwinding) which crash the calling thread or process. This issue has been patched via commit e60e991.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"references\":[{\"url\":\"https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/RustCrypto/elliptic-curves/pull/1603\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}