Allocation of Resources Without Limits or Throttling in lz4-java - #VU153029
Published: September 30, 2026
Vulnerability identifier: #VU153029
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in LZ4FrameInputStream.readHeader() when processing concatenated LZ4 frames. A remote attacker can send many minimal empty LZ4 frames to cause a denial of service.
Single-frame mode is not affected.
Affected software
lz4-java
Remediation
Install security update from vendor's website.
lz4-java - update to 1.11.4