zstd-jni-java: zstd-jni versions before 1.5.7-14 fail to validate closed state in setDict, setLongMax, setLevel and setRefMultipleDD...
CVE-2026-87877 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-87877, released September 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.
zstd-jni versions before 1.5.7-14 fail to validate closed state in setDict, setLongMax, setLevel and setRefMultipleDDicts methods of stream classes. Attackers can call these methods on closed streams to write through freed native pointers, corrupting unrelated objects or crashing the JVM.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| zstd-jni · opensuse-leap 16.0 | 1.5.7.16-160000.1.1 | OPENSUSE-SU-2026:21902-1 | Sep 21, 2026 |
| zstd-jni · sles 16.0 | 1.5.7.16-160000.1.1 | SUSE-SU-2026:23868-1 | Sep 21, 2026 |
| zstd-jni-java · Debian 14 | 1.5.7-23+ds-1 | DEBIAN-CVE-2026-87877 | Sep 9, 2026 |
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