Detections
Analytics
AlmaLinux 9 : squid (ALSA-2026:6301)
critical Nessus Plugin ID 304540
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:6301 advisory.* squid: Squid: Denial of Service via heap Use-After-Free vulnerability in ICP handling (CVE-2026-33526)
* Squid: Squid: Denial of Service via crafted ICP traffic (CVE-2026-32748)
Tenable has extracted the preceding description block directly from the AlmaLinux 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 squid package.See Also
Plugin Details
Severity: Critical
ID: 304540
File Name: alma_linux_ALSA-2026-6301.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 4/1/2026
Updated: 4/1/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2026-33526
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.2
Threat Score: 7.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Vulnerability Information
CPE: cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:squid, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::crb
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 3/31/2026
Vulnerability Publication Date: 3/26/2026
Reference Information
CVE: CVE-2026-32748, CVE-2026-33526