Detections
Analytics
AlmaLinux 9 : tomcat (ALSA-2026:93469)
critical Nessus Plugin ID 375318
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:93469 advisory.* tomcat: Apache Tomcat: Security constraint bypass due to improper access control (CVE-2026-65182)
* tomcat: Apache Tomcat: Access control bypass due to off-by-one error in RewriteValve [N] flag processing (CVE-2026-65927)
* tomcat: Apache Tomcat: Improper Input Validation allows HTTP/2 no-authority bypass of strict SNI validation (CVE-2026-65637)
* tomcat: Apache Tomcat: Improper Authentication due to principal lookup failure (CVE-2026-68569)
* tomcat: Apache Tomcat: Authentication bypass via limited replay attack in DIGEST authenticator (CVE-2026-65905)
* tomcat: Apache Tomcat: Unauthorized resource access via FORM authentication bypass (CVE-2026-68525)
* tomcat: Apache Tomcat: Denial of Service via HTTP/2 allocation leak (CVE-2026-68763)
Tenable has extracted the preceding description block directly from the AlmaLinux 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
Plugin Details
Severity: Critical
ID: 375318
File Name: alma_linux_ALSA-2026-93469.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 11/2/2026
Updated: 11/2/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.9
Percentile: 96.32
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-65905
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/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: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:tomcat-admin-webapps, p-cpe:/a:alma:linux:tomcat-docs-webapp, p-cpe:/a:alma:linux:tomcat-el-3.0-api, p-cpe:/a:alma:linux:tomcat-jsp-2.3-api, p-cpe:/a:alma:linux:tomcat-lib, p-cpe:/a:alma:linux:tomcat-servlet-4.0-api, p-cpe:/a:alma:linux:tomcat-webapps, p-cpe:/a:alma:linux:tomcat
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 11/2/2026
Vulnerability Publication Date: 8/18/2026
Reference Information
CVE: CVE-2026-65182, CVE-2026-65637, CVE-2026-65905, CVE-2026-65927, CVE-2026-68525, CVE-2026-68569, CVE-2026-68763