CVE-2026-106450

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.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106450.json"
}

References

Affected packages

Git / github.com/yawkat/lz4-java

Affected ranges

Type

GIT

Repo

https://github.com/yawkat/lz4-java

Events

Introduced

Fixed

4af910bc99c2f021f0cd56f6ca7f7600f4dda4a0

Fixed

2acc0ec1ead226145c62a817c18c8ed49233a283

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.11.4"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "2acc0ec1ead226145c62a817c18c8ed49233a283"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v1.11.4",
            "range":  [
                {
                    "fixed":  "4af910bc99c2f021f0cd56f6ca7f7600f4dda4a0"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*

1.0.0

1.2.0

1.3.0

1.4.0

1.5.0

1.6.0

1.7.0

1.8.0

v1.*

v1.10.0

v1.10.1

v1.10.2

v1.10.3

v1.10.4

v1.11.0

v1.11.1

v1.11.2

v1.11.3

v1.9.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106450.json"