Detections
Analytics
RockyLinux 8 : libarchive (RLSA-2026:8534)
critical Nessus Plugin ID 307467
Synopsis
The remote RockyLinux host is missing one or more security updates.Description
The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:8534 advisory.* libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing (CVE-2026-4424)
* libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing (CVE-2026-5121)
Tenable has extracted the preceding description block directly from the RockyLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://errata.rockylinux.org/RLSA-2026:8534
Plugin Details
Severity: Critical
ID: 307467
File Name: rocky_linux_RLSA-2026-8534.nasl
Version: 1.1
Type: Local
Published: 4/18/2026
Updated: 4/18/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-5121
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:rocky:linux:libarchive, p-cpe:/a:rocky:linux:libarchive-debugsource, p-cpe:/a:rocky:linux:bsdtar, p-cpe:/a:rocky:linux:libarchive-devel, p-cpe:/a:rocky:linux:bsdtar-debuginfo, p-cpe:/a:rocky:linux:libarchive-debuginfo, cpe:/o:rocky:linux:8
Required KB Items: Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 4/18/2026
Vulnerability Publication Date: 3/19/2026
Reference Information
CVE: CVE-2026-4424, CVE-2026-5121