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Oracle Linux 9 : ruby:3.3 (ELSA-2026-18030)

high Nessus Plugin ID 315505

Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-18030 advisory.

 - Fix arbitrary code execution via deserialization bypass in ERB. (CVE-2026-41316) Resolves: RHEL-171255
 - Fix possible denial of service in resolv gem (CVE-2025-24294)
 - Fix URI Credential Leakage Bypass previous fixes. (CVE-2025-61594)
 - Fix REXML denial of service. (CVE-2025-58767) Resolves: RHEL-122015
 - Fix Net::IMAP vulnerable to possible DoS by memory exhaustion. (CVE-2025-25186)
 - Fix Denial of Service in CGI::Cookie.parse. (CVE-2025-27219) Resolves: RHEL-86109
 - Fix userinfo leakage in URI#join, URI#merge and URI#+. (CVE-2025-27221)
 - Fix DoS vulnerability in rexml.
 (CVE-2024-39908) (CVE-2024-41946) (CVE-2024-43398) Resolves: RHEL-57575 Resolves: RHEL-57572 Resolves: RHEL-57068
 - Fix REXML DoS when parsing an XML having many specific characters such as whitespace character, >] and ]>.
 (CVE-2024-41123) Resolves: RHEL-57569
 - Fix buffer overread vulnerability in StringIO.
 (CVE-2024-27280) Resolves: RHEL-34130
 - Fix RCE vulnerability with .rdoc_options in RDoc.
 (CVE-2024-27281) Resolves: RHEL-34122
 - Fix Arbitrary memory address read vulnerability with Regex search.
 (CVE-2024-27282) Resolves: RHEL-33872

 rubygem-mysql2

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue 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-2026-18030.html

Plugin Details

Severity: High

ID: 315505

File Name: oraclelinux_ELSA-2026-18030.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/19/2026

Updated: 5/19/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-41316

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/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:oracle:linux:rubygem-json, p-cpe:/a:oracle:linux:rubygems, p-cpe:/a:oracle:linux:rubygem-psych, p-cpe:/a:oracle:linux:rubygem-pg, p-cpe:/a:oracle:linux:rubygem-io-console, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:rubygem-typeprof, p-cpe:/a:oracle:linux:rubygem-bigdecimal, p-cpe:/a:oracle:linux:rubygem-racc, p-cpe:/a:oracle:linux:rubygem-rdoc, p-cpe:/a:oracle:linux:rubygem-irb, p-cpe:/a:oracle:linux:rubygem-power_assert, p-cpe:/a:oracle:linux:rubygems-devel, p-cpe:/a:oracle:linux:rubygem-bundler, p-cpe:/a:oracle:linux:rubygem-mysql2, p-cpe:/a:oracle:linux:rubygem-pg-doc, p-cpe:/a:oracle:linux:rubygem-rbs, p-cpe:/a:oracle:linux:rubygem-mysql2-doc, p-cpe:/a:oracle:linux:ruby-doc, p-cpe:/a:oracle:linux:rubygem-rexml, p-cpe:/a:oracle:linux:ruby, p-cpe:/a:oracle:linux:rubygem-rake, p-cpe:/a:oracle:linux:ruby-default-gems, p-cpe:/a:oracle:linux:ruby-bundled-gems, p-cpe:/a:oracle:linux:rubygem-minitest, p-cpe:/a:oracle:linux:ruby-devel, p-cpe:/a:oracle:linux:ruby-libs, p-cpe:/a:oracle:linux:rubygem-test-unit, p-cpe:/a:oracle:linux:rubygem-rss

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: 5/19/2026

Vulnerability Publication Date: 4/24/2026

Reference Information

CVE: CVE-2026-41316