{"cve":"CVE-2026-106453","nvd":{"published":"2026-10-06T20:17:27.457","modified":"2026-10-07T17:16:48.007","status":"Awaiting Analysis","description":"yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.2, LZ4DecompressorWithLength uses getDecompressedLength to trust the four-byte decompressed-length header before validating the compressed input, allowing a five-byte attacker-supplied input whose header declares a large output size to request up to approximately 2 GiB and exhaust the JVM heap. Convenience overloads backed by LZ4FastDecompressor or LZ4SafeDecompressor allocate the untrusted size, while overloads that write to a caller-provided destination buffer are not affected because the caller controls the destination size. This issue is fixed in version 1.11.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-789"],"references":["https://github.com/yawkat/lz4-java/commit/6492ce5aca6bd03ff9e08ee18a2beb94c431371a","https://github.com/yawkat/lz4-java/releases/tag/v1.11.2","https://github.com/yawkat/lz4-java/security/advisories/GHSA-6cx8-rjf8-pr8g"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-106453","score":0.00372,"percentile":0.30825,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-6cx8-rjf8-pr8g","url":"https://osv.dev/vulnerability/GHSA-6cx8-rjf8-pr8g","summary":"yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError","modified":"2026-10-07T16:30:05.557286626Z","packages":[{"ecosystem":"Maven","name":"at.yawk.lz4:lz4-java","purl":"pkg:maven/at.yawk.lz4/lz4-java","ranges":["<1.11.2"],"fixed":["1.11.2"]},{"ecosystem":"Maven","name":"org.lz4:lz4-java","purl":"pkg:maven/org.lz4/lz4-java","ranges":["<=1.8.1"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}