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From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: lz4-java: CVE-2026-59949
Message-ID: <178732107255.181454.2894680126333953928.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0+nmu1
Date: Fri, 21 Aug 2026 16:04:32 +0200
Delivered-To: submit@bugs.debian.org

Source: lz4-java
Version: 1.8.0-4
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for lz4-java.

CVE-2026-59949[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-59949
    https://www.cve.org/CVERecord?id=CVE-2026-59949
[1] https://github.com/yawkat/lz4-java/security/advisories/GHSA-xx22-p4ch-683r
[2] https://github.com/yawkat/lz4-java/commit/dbd86d04b8dd716e1c2bc626be54189997d910da

Regards,
Salvatore
]