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Fencer Vulns
high 8.8

CVE-2025-12183 json

org.lz4:lz4-java - Out-of-Bounds Memory Access

published 2025-11-28 11 mo ago modified 2026-11-04 4 d ago also GHSA-vqf4-7m7x-wgfc , EUVD-2025-199880

cvss
8.8
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

Out-of-bounds memory operations in org.lz4:lz4-java 1.8.0 and earlier allow remote attackers to cause denial of service and read adjacent memory via untrusted compressed input.

Patch / fix

  • maven at.yawk.lz4:lz4-java 1.8.1
  • maven org.lz4:lz4-java 1.8.1
  • lz4-java Debian 14 1.11.2+ds1-1

debian advisories DEBIAN-CVE-2025-12183

  • eap8-wildfly jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el9eap
  • eap8-wildfly-modules jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el9eap
  • eap8-wildfly-java-jdk17 jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el9eap
  • eap8-wildfly-java-jdk21 jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el9eap
  • eap8-wildfly jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el8eap
  • eap8-wildfly-modules jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el8eap
  • eap8-wildfly-java-jdk17 jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el8eap
  • eap8-wildfly-java-jdk21 jboss enterprise application platform 8.1 8.1.4-2.GA_redhat_00005.1.el8eap

red hat advisories RHSA-2026:1871RHSA-2026:1870

  • grype openSUSE Tumbleweed 0.109.1-1.1

opensuse advisories openSUSE-SU-2026:10317-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-12183 updated cvss 6.5

lz4-java: lz4-java: Out-of-bounds memory operations lead to denial of service and information disclosure

  • Red Hat Cryostat 4 lz4-java Red Hat Logging Subsystem for Red Hat OpenShift lz4-java Red Hat AMQ Clients lz4-java Red Hat build of Apache Camel - HawtIO 4 lz4-java Red Hat build of Apache Camel 4 for Quarkus 3 lz4-java Red Hat build of Apache Camel for Spring Boot 4 lz4-java
    +12 more products
    Red Hat build of Apicurio Registry 2 lz4-java Red Hat build of Apicurio Registry 3 lz4-java Red Hat build of Debezium 2 lz4-java Red Hat build of Debezium 3 lz4-java Red Hat Data Grid 8 lz4-java Red Hat Enterprise Linux 9 jmc Red Hat Fuse 7 lz4-java Red Hat JBoss Enterprise Application Platform Expansion Pack lz4-java Red Hat JBoss Web Server 6 lz4-java Red Hat Process Automation 7 lz4-java Red Hat streams for Apache Kafka 2 lz4-java Red Hat streams for Apache Kafka 3 lz4-java
    affected: workaround, no fix available “Fix deferred”
  • Red Hat build of Quarkus 3.20.4.SP1
    fixed: vendor fix RHSA-2026:0131
  • Red Hat build of Quarkus 3.27.1.SP1
    fixed: vendor fix RHSA-2026:0134
  • Red Hat JBoss Enterprise Application Platform 7 lz4-java Red Hat JBoss Enterprise Application Platform 8 lz4-java
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
11 mo ago

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
maven at.yawk.lz4:lz4-java
<1.8.1
1.8.1
maven org.lz4:lz4-java
<1.8.1
1.8.1
maven org.lz4:lz4-pure-java
<=1.8.0
 no fix listed
maven net.jpountz.lz4:lz4
<=1.3.0
 no fix listed

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.