CVE Explorer

CVE-2025-66566

yawkat LZ4 Java provides LZ4 compression for Java. Insufficient clearing of the output buffer in Java-based decompressor implementations in lz4-java 1.10.0 and earlier allows remote attackers to read previous buffer contents via crafted compressed input. In applications where the output buffer is reused without being cleared, this may lead to disclosure of sensitive data. JNI-based implementations are not affected. This vulnerability is fixed in 1.10.1.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:80eb17ac7b6d50f8e95323e584142563c7b25f3e77da3530ff105b8bd688cbd8

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"lz4-java","vendor":"yawkat","versions":[{"status":"affected","version":"< 1.10.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5e15a8bd57bf4228d7bf508289f944230e37c4c0913c368b30e1c9be8459dfe7 · sha256:f632eba50bb04e66… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:5e15a8bd57bf4228d7bf508289f944230e37c4c0913c368b30e1c9be8459dfe7 · sha256:f632eba50bb04e66… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-201","description":"CWE-201: Insertion of Sensitive Information Into Sent Data","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:5e15a8bd57bf4228d7bf508289f944230e37c4c0913c368b30e1c9be8459dfe7 · sha256:f632eba50bb04e66… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/yawkat/lz4-java/commit/33d180cb70c4d93c80fb0dc3ab3002f457e93840","tags":["x_refsource_MISC"],"url":"https://github.com/yawkat/lz4-java/commit/33d180cb70c4d93c80fb0dc3ab3002f457e93840"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5e15a8bd57bf4228d7bf508289f944230e37c4c0913c368b30e1c9be8459dfe7 · sha256:f632eba50bb04e66… · /containers/cna/references/1

{"name":"https://github.com/yawkat/lz4-java/security/advisories/GHSA-cmp6-m4wj-q63q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/yawkat/lz4-java/security/advisories/GHSA-cmp6-m4wj-q63q"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5e15a8bd57bf4228d7bf508289f944230e37c4c0913c368b30e1c9be8459dfe7 · sha256:f632eba50bb04e66… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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