{"id":"DEBIAN-CVE-2026-106450","details":"yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.4, net.jpountz.lz4.LZ4FrameInputStream readHeader() allocates two new 4 MiB block buffers whenever a maximum-block-size frame header is read, and the default concatenated-frame mode allows attacker-controlled streams containing many minimal empty frames to trigger roughly 8 MiB of allocation for every 11 input bytes. The stream produces no decompressed output while consuming CPU and garbage-collection time, so decompressed-size limits do not mitigate the issue; readSingleFrame mode is not affected. This issue is fixed in version 1.11.4.","modified":"2026-10-07T11:00:08.221011907Z","published":"2026-10-06T20:17:27.037Z","upstream":["CVE-2026-106450"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-106450"}],"affected":[{"package":{"name":"lz4-java","ecosystem":"Debian:12","purl":"pkg:deb/debian/lz4-java?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11.2+ds1-1","1.11.2+ds1-2","1.11.2+ds1-3","1.8.0-3","1.8.0-4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106450.json"}},{"package":{"name":"lz4-java","ecosystem":"Debian:13","purl":"pkg:deb/debian/lz4-java?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11.2+ds1-1","1.11.2+ds1-2","1.11.2+ds1-3","1.8.0-4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106450.json"}},{"package":{"name":"lz4-java","ecosystem":"Debian:14","purl":"pkg:deb/debian/lz4-java?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11.2+ds1-1","1.11.2+ds1-2","1.11.2+ds1-3","1.8.0-4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106450.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}