Detections
Analytics

Oracle Linux 10 : ruby4.0 (ELSA-2026-33540)

high Nessus Plugin ID 327648

Synopsis

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

Description

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-33540 advisory.

 - Fix Net::IMAP ResponseReader quadratic complexity vulnerability (CVE-2026-42245) Includes core fix plus additional performance optimizations Resolves: RHEL-181675
 - Fix Net::IMAP STARTTLS stripping vulnerability (CVE-2026-42246) Resolves: RHEL-181767
 - Fix Net::IMAP command injection vulnerability via unvalidated Symbol arguments (CVE-2026-42258) Resolves: RHEL-181793
 - Fix ERB: Arbitrary code execution via bypass (CVE-2026-41316) Resolves: RHEL-170910

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 packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-33540.html

Plugin Details

Severity: High

ID: 327648

File Name: oraclelinux_ELSA-2026-33540.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/17/2026

Updated: 7/17/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.64

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-42246

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.6

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:ruby4.0-rubygem-pg, cpe:/o:oracle:linux:10, p-cpe:/a:oracle:linux:ruby4.0, p-cpe:/a:oracle:linux:ruby4.0-doc, p-cpe:/a:oracle:linux:ruby4.0-devel, p-cpe:/a:oracle:linux:ruby4.0-rubygem-mysql2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/16/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-42245, CVE-2026-42246, CVE-2026-42258