FKIE_CVE-2026-22699

Vulnerability from fkie_nvd - Published: 2026-01-10 06:15 - Updated: 2026-01-22 14:53
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 PKE decryption path where an invalid elliptic-curve point (C1) is decoded and the resulting value is unwrapped without checking. Specifically, AffinePoint::from_encoded_point(&encoded_c1) may return a None/CtOption::None when the supplied coordinates are syntactically valid but do not lie on the SM2 curve. The calling code previously used .unwrap(), causing a panic when presented with such input. This issue has been patched via commit 085b7be.
References
security-advisories@github.comhttps://github.com/RustCrypto/elliptic-curves/commit/085b7bee647029bd189e1375203418205006bcabPatch
security-advisories@github.comhttps://github.com/RustCrypto/elliptic-curves/pull/1602Issue Tracking, Patch
security-advisories@github.comhttps://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-78p6-6878-8mj6Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-78p6-6878-8mj6Exploit, Vendor Advisory
Impacted products
Vendor Product Version
rustcrypto sm2_elliptic_curve 0.14.0
rustcrypto sm2_elliptic_curve 0.14.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:rustcrypto:sm2_elliptic_curve:0.14.0:pre0:*:*:*:rust:*:*",
              "matchCriteriaId": "5F5BCFE9-1585-4A90-857F-7F9E1B9C9ADA",
              "vulnerable": true
            },
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              "matchCriteriaId": "B584C50F-8ED4-45F4-8799-7CCFE8D4DF66",
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          "negate": false,
          "operator": "OR"
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  ],
  "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 PKE decryption path where an invalid elliptic-curve point (C1) is decoded and the resulting value is unwrapped without checking. Specifically, AffinePoint::from_encoded_point(\u0026encoded_c1) may return a None/CtOption::None when the supplied coordinates are syntactically valid but do not lie on the SM2 curve. The calling code previously used .unwrap(), causing a panic when presented with such input. This issue has been patched via commit 085b7be."
    }
  ],
  "id": "CVE-2026-22699",
  "lastModified": "2026-01-22T14:53:30.840",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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  },
  "published": "2026-01-10T06:15:52.377",
  "references": [
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      "tags": [
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      "url": "https://github.com/RustCrypto/elliptic-curves/commit/085b7bee647029bd189e1375203418205006bcab"
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      "source": "security-advisories@github.com",
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      "tags": [
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    },
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-20"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}


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