CVE catalog
CVE-2026-106453
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 compres
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.37% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lz4-java | sid | 1.11.2+ds1-3 | fixed |
| Debian | lz4-java | forky | 1.11.2+ds1-3 | fixed |
| Debian | lz4-java | trixie | 1.8.0-4 | vulnerable |
| Debian | lz4-java | bookworm | 1.8.0-3 | vulnerable |
| Maven | at.yawk.lz4:lz4-java | Not reported | 1.11.2 | fixed |
| Maven | org.lz4:lz4-java | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lz4-java | source | sid | 1.11.2+ds1-1 | not yet assigned | Not reported | Not reported |
| Debian | lz4-java | source | forky | 1.11.2+ds1-1 | not yet assigned | Not reported | Not reported |
| Debian | lz4-java | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | lz4-java | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Maven | at.yawk.lz4:lz4-java | maven | Not reported | 1.11.2 | Not reported | GHSA-6CX8-RJF8-PR8G | Not reported |
Notes
[bookworm] lz4-java: minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [liblz4-java]Affected
Source package: [lz4-java]
Details (2)
1.8.0-3· all · bookwormAffected
nvd · lz4-java · debian · bookworm; nvd · lz4-java · debian · 12
1.8.0-3· all · bookwormAffected
nvd · lz4-java · debian · bookworm; nvd · lz4-java · debian · 12
- [liblz4-jni]Affected
Source package: [lz4-java]
Details (2)
1.8.0-3· amd64 · bookwormAffected
nvd · lz4-java · debian · bookworm; nvd · lz4-java · debian · 12
1.8.0-3· arm64 · bookwormAffected
nvd · lz4-java · debian · bookworm; nvd · lz4-java · debian · 12
[Debian 13 (Trixie)]
- [liblz4-java]Affected
Source package: [lz4-java]
Details (2)
1.8.0-4· all · trixieAffected
nvd · lz4-java · debian · 13
1.8.0-4· all · trixieAffected
nvd · lz4-java · debian · 13
- [liblz4-jni]Affected
Source package: [lz4-java]
Details (2)
1.8.0-4· amd64 · trixieAffected
nvd · lz4-java · debian · 13
1.8.0-4+b1· arm64 · trixieAffected
nvd · lz4-java · debian · 13
Observed:
References
- [https://github.com/advisories/GHSA-6cx8-rjf8-pr8g]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-106453]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-106453]
- [https://security-tracker.debian.org/tracker/CVE-2026-106453]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106453.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]