CVE-2026-109395 Ning compress-lzf - Out-of-Bounds Read/Write

Ning compress-lzf < 1.2.0 contains an out-of-bounds memory access vulnerability caused by improper validation of back-references and literal runs in UnsafeChunkDecoder, letting attackers leak JVM heap memory or crash the JVM, exploit requires crafted LZF streams.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Out-of-Bounds Read/Write
Impact
Information Disclosure, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published
20 October 2026
Updated
20 October 2026
Weakness
CWE-125

Vendor fix

Update to version 1.2.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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