CVE-2026-59949

{
  "id": "CVE-2026-59949",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-18T15:16:56.160",
  "lastModified": "2026-10-22T22:10:00.250",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.1, JNI-backed XXHash implementations fail to validate the byte array object and the off and len arguments in XXHashFactory.nativeInstance().hash32().hash(), XXHashFactory.nativeInstance().hash64().hash(), XXHashFactory.nativeInstance().newStreamingHash32().update(), and XXHashFactory.nativeInstance().newStreamingHash64().update(), allowing null arrays or oversized ranges to reach native code, read outside the Java array, and fatally terminate the JVM. This issue is fixed in version 1.11.1."
    },
    {
      "lang": "es",
      "value": "yawkat LZ4 Java proporciona compresión LZ4 para Java. Antes de la versión 1.11.1, las implementaciones XXHash respaldadas por JNI no validan el objeto de array de bytes y los argumentos off y len en XXHashFactory.nativeInstance().hash32().hash(), XXHashFactory.nativeInstance().hash64().hash(), XXHashFactory.nativeInstance().newStreamingHash32().update(), y XXHashFactory.nativeInstance().newStreamingHash64().update(), permitiendo que arrays nulos o rangos sobredimensionados alcancen código nativo, lean fuera del array de Java y terminen fatalmente la JVM. Este problema se ha corregido en la versión 1.11.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "yawkat",
          "product": "lz4-java",
          "versions": [
            {
              "version": "< 1.11.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-18T17:19:17.863670Z",
          "id": "CVE-2026-59949",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/yawkat/lz4-java/commit/dbd86d04b8dd716e1c2bc626be54189997d910da",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/yawkat/lz4-java/releases/tag/v1.11.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/yawkat/lz4-java/security/advisories/GHSA-xx22-p4ch-683r",
      "source": "[email protected]"
    }
  ]
}