Detections
Analytics
Amazon Linux 2023 : bcel (ALAS2023-2026-3422)
high Nessus Plugin ID 379834
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3422 advisory.Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons BCEL.
This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings into HTML unescaped (stored XSS in reports).
This issue affects Apache Commons BCEL: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue. (CVE-2026-105111)
Symbolic name not mapping to correct object vulnerability in Apache Commons.
BCEL caches attacker-controlled classes under their self-declared names without validating the requested name, allowing subsequent lookups and name-keyed verification results to refer to a different class.
This issue affects Apache Commons: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue. (CVE-2026-94114)
Tenable has extracted the preceding description block directly from the tested product 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
Run 'dnf update bcel --releasever 2023.12.20261112' or or 'dnf update --advisory ALAS2023-2026-3422 --releasever 2023.12.20261112' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-3422.html
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: High
ID: 379834
File Name: al2023_ALAS2023-2026-3422.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 11/12/2026
Updated: 11/12/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.81
CVSS v2
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4
Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2026-94114
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.2
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.2
Threat Score: 4.6
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:bcel
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 11/12/2026
Vulnerability Publication Date: 10/6/2026