Detections
Analytics

Alibaba Cloud Linux 3 : 0206: tomcat (ALINUX3-SA-2026:0206)

high Nessus Plugin ID 327266

Synopsis

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

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0206 advisory.

 Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

 CVE-2026-29146:
 Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.
 This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.
 Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.

 CVE-2026-34486:
 Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to thefix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor.
 This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116.
 Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

Tenable has extracted the preceding description block directly from the Alibaba Cloud 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

http://mirrors.aliyun.com/alinux/3/cve/alinux3-sa-20260206.xml

Plugin Details

Severity: High

ID: 327266

File Name: alinux3_sa_2026-0206.nasl

Version: 1.1

Type: Local

Published: 7/16/2026

Updated: 7/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 96.44

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-34486

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-29146

Vulnerability Information

CPE: cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-jsp-2.3-api, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-docs-webapp, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-servlet-4.0-api, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-webapps, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-lib, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-el-3.0-api, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat-admin-webapps, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:tomcat

Required KB Items: Host/local_checks_enabled, Host/Alibaba/release, Host/Alibaba/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/15/2026

Vulnerability Publication Date: 3/23/2026

Reference Information

CVE: CVE-2026-29146, CVE-2026-34486