CVE-2026-4424
Libarchive: libarchive: information disclosure via heap out-of-bounds read in rar archive processing
Description
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka Red Hat, redhat
libarchive
oss-project
Canonical Ltd.
commercial·GBaka canonical
and 40 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Collection
References
https://access.redhat.com/errata/RHSA-2026:10065
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10097
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:11768
access.redhat.com
and 38 more references View all →
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