{"id":"DEBIAN-CVE-2026-87795","details":"zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.","modified":"2026-09-15T09:03:02.083834834Z","published":"2026-09-09T10:22:34.557Z","upstream":["CVE-2026-87795"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-87795"}],"affected":[{"package":{"name":"zstd-jni-java","ecosystem":"Debian:12","purl":"pkg:deb/debian/zstd-jni-java?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.2-5+ds-3","1.5.2-5+ds-4","1.5.2-5+ds-5","1.5.2-5+ds-6","1.5.2-5+ds-7","1.5.2-5+ds-8","1.5.4-2+ds-1","1.5.4-2+ds-2","1.5.4-2+ds-3~exp1","1.5.4-2+ds-3~exp2","1.5.4-2+ds-3~exp3","1.5.4-2+ds-3~exp4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87795.json"}},{"package":{"name":"zstd-jni-java","ecosystem":"Debian:13","purl":"pkg:deb/debian/zstd-jni-java?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.2-5+ds-7","1.5.2-5+ds-8","1.5.4-2+ds-1","1.5.4-2+ds-2","1.5.4-2+ds-3~exp1","1.5.4-2+ds-3~exp2","1.5.4-2+ds-3~exp3","1.5.4-2+ds-3~exp4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87795.json"}},{"package":{"name":"zstd-jni-java","ecosystem":"Debian:14","purl":"pkg:deb/debian/zstd-jni-java?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.2-5+ds-7","1.5.2-5+ds-8","1.5.4-2+ds-1","1.5.4-2+ds-2","1.5.4-2+ds-3~exp1","1.5.4-2+ds-3~exp2","1.5.4-2+ds-3~exp3","1.5.4-2+ds-3~exp4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87795.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}