Detections
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Oracle Linux 8 : squid:4 (ELSA-2026-8317)

critical Nessus Plugin ID 307379

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-8317 advisory.

 - Fix patch for CVE-2026-32748
 - Resolves: RHEL-160675 - squid:4/squid: Squid: Denial of Service via crafted ICP traffic (CVE-2026-32748)
 - Resolves: RHEL-160674 - squid:4/squid: Squid: Denial of Service via heap Use-After-Free vulnerability in ICP handling (CVE-2026-33526)
 - Resolves: RHEL-122484 - squid: Squid vulnerable to information disclosure via authentication credential leakage in error handling (CVE-2025-62168)
 - Resolves: RHEL-22593 - CVE-2024-23638 squid:4/squid: vulnerable to a Denial of Service attack against Cache Manager error responses
 - Resolves: RHEL-65075 - CVE-2024-45802 squid:4/squid: Denial of Service processing ESI response content
 - Resolves: RHEL-28529 - squid:4/squid: Denial of Service in HTTP Chunked Decoding (CVE-2024-25111)

Tenable has extracted the preceding description block directly from the Oracle Linux 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 libecap, libecap-devel and / or squid packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-8317.html

Plugin Details

Severity: Critical

ID: 307379

File Name: oraclelinux_ELSA-2026-8317.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/17/2026

Updated: 4/17/2026

Supported Sensors: Continuous Assessment, Nessus Agent, 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: p-cpe:/a:oracle:linux:libecap-devel, p-cpe:/a:oracle:linux:squid, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:libecap

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 4/16/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-32748, CVE-2026-33526

IAVB: 2026-B-0076