OESA-2026-4078 (CVE-2026-59949)

Vulnerability from osv_openeuler – Published: 2026-09-25 01:28 – Updated: 2026-09-25 01:28 – Source website
VLAI
Summary
lz4-java security update
Details

LZ4 compression for Java, based on Yann Collet's work. This library provides access to two compression methods that both generate a valid LZ4 stream: * fast scan (LZ4): ° low memory footprint (~ 16 KB), ° very fast (fast scan with skipping heuristics in case the input looks incompressible), ° reasonable compression ratio (depending on the redundancy of the input). * high compression (LZ4 HC): ° medium memory footprint (~ 256 KB), ° rather slow (~ 10 times slower than LZ4), ° good compression ratio (depending on the size and the redundancy of the input). The streams produced by those 2 compression algorithms use the same compression format, are very fast to decompress and can be decompressed by the same decompressor instance.

Security Fix(es):

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.(CVE-2026-59949)

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "lz4-java-1.8.0-3.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "lz4-java-javadoc-1.8.0-3.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "lz4-java-1.8.0-3.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "lz4-java-1.8.0-3.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "lz4-java",
        "purl": "pkg:rpm/openEuler/lz4-java\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.0-3.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "LZ4 compression for Java, based on Yann Collet\u0026amp;apos;s work. This library provides access to two compression methods that both generate a valid LZ4 stream: * fast scan (LZ4):     \u00b0 low memory footprint (~ 16 KB),     \u00b0 very fast (fast scan with skipping heuristics in case the       input looks incompressible),     \u00b0 reasonable compression ratio (depending on the       redundancy of the input). * high compression (LZ4 HC):     \u00b0 medium memory footprint (~ 256 KB),     \u00b0 rather slow (~ 10 times slower than LZ4),     \u00b0 good compression ratio (depending on the size and       the redundancy of the input). The streams produced by those 2 compression algorithms use the same compression format, are very fast to decompress and can be decompressed by the same decompressor instance.\r\n\r\nSecurity Fix(es):\n\nyawkat 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.(CVE-2026-59949)",
  "id": "OESA-2026-4078",
  "modified": "2026-09-25T01:28:09Z",
  "published": "2026-09-25T01:28:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4078"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59949"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "lz4-java security update",
  "upstream": [
    "CVE-2026-59949"
  ]
}



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