CVE-2026-106450: yawkat lz4-java
Vulnerability summary
CVE-2026-106450 is a medium (CVSS 5.3) vulnerability in yawkat lz4-java. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.5% of scored vulnerabilities.
Timeline
- 06-10-2026PublishedVulnerability first disclosed.
- 09-10-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
7 scores · 7 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · WolfiEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · ChainguardEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · MavenEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard164 products
- akhq< 0.28.0-r14
- apache-hop< 2.19.0-r7
- apache-hop-fips< 2.19.0-r5
- apache-nifi-2.11< 2.11.0-r11
- apache-nifi-2.12< 2.12.0-r5
Wolfi36 products
- akhq< 0.28.0-r14
- apache-pulsar-4.2< 4.2.5-r1
- cassandra-4.1All versions (No fix recorded) | < 4.1.12-r4
- cassandra-5.0< 5.0.9-r12
- cassandra-reaper< 5.0.1-r7
2 vendors · 200 products · Showing 200 of 206. Use Open JSON for the complete list.
References
9 links- github.com/yawkat/lz4-java/security/advisories/GHSA-gm45-99xc-r7wvX Refsource CONFIRMREPORTAdvisoryWEB
- github.com/yawkat/lz4-javaPACKAGE