NULL Pointer Dereference Affecting logstash-9.5 package, versions <9.5.1-r2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-LOGSTASH95-18868717
- published18 Aug 2026
- disclosed18 Aug 2026
Introduced: 18 Aug 2026
NewCVE-2026-59949 (opens in a new tab)How to fix?
Upgrade Chainguard logstash-9.5 to version 9.5.1-r2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream logstash-9.5 package and not the logstash-9.5 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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.