CVE-2026-4424
HIGHLibarchive: libarchive: information disclosure via heap out-of-bounds read in rar archive processing
Title source: cnaDescription
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.
References (21)
... and 1 more
Scores
CVSS v3
7.5
EPSS
0.0036
EPSS Percentile
58.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (39)
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 10
0:3.7.7-8.el10_1
Red Hat/Red Hat Enterprise Linux 10.0 Extended Update Support
0:3.7.7-5.el10_0
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 7 Extended Lifecycle Support
0:3.1.2-14.el7_9.2
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 8
0:3.3.3-7.el8_10
Red Hat/Red Hat Enterprise Linux 8.2 Advanced Update Support
0:3.3.2-8.el8_2.2
Red Hat/Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
0:3.3.3-1.el8_4.2
... and 29 more
Published
Mar 19, 2026
Tracked Since
Mar 19, 2026