CVE-2026-109395

Ning compress-lzf before 1.2.0 Out-of-Bounds Memory Access via UnsafeChunkDecoder

Published Oct 20, 2026 CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
Description
Ning compress-lzf before 1.2.0 contains an out-of-bounds memory access vulnerability in the sun.misc.Unsafe based UnsafeChunkDecoder that fails to validate back-references and literal runs. Attackers can supply crafted LZF streams to applications using the default LZFDecoder to leak unrelated JVM heap memory into decompressed output or crash the JVM.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Ning
Ning compress-lzf
Vendors & Products Ning
Ning compress-lzf
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Ning compress-lzf before 1.2.0 contains an out-of-bounds memory access vulnerability in the sun.misc.Unsafe based UnsafeChunkDecoder that fails to validate back-references and literal runs. Attackers can supply crafted LZF streams to applications using the default LZFDecoder to leak unrelated JVM heap memory into decompressed output or crash the JVM.
Title Ning compress-lzf before 1.2.0 Out-of-Bounds Memory Access via UnsafeChunkDecoder
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'}

cvssV4_0

{'score': 8.8, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 20, 2026, 2:29 PM
Reserved
Oct 12, 2026, 2:40 PM
Status
Awaiting Analysis
Published
Oct 20, 2026, 1:17 AM
Modified
Oct 20, 2026, 8:06 PM