CLSA-2026-1786720463

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1786720463
Upstream
CVE (2)
Published
2026-08-14T15:14:34Z
Modified
2026-10-26T09:43:27Z
Summary
Fix CVE(s): CVE-2024-56337
Details
  • SECURITY UPDATE: fix for the following CVEs:
    • CVE-2024-56337: incomplete mitigation of CVE-2024-50379 — the JVM global canonical file name cache (sun.io.useCanonCaches) could still return a stale answer for a concurrently written path, leaving the TOCTOU race during JSP compilation exploitable on case-insensitive file systems with a write-enabled Default Servlet. DirResourceSet now verifies at startup that the cache is disabled, disabling it reflectively where possible and refusing to start the potentially vulnerable web application otherwise; new Jre12Compat and Jre21Compat tiers implement the per-JRE detection, and catalina.sh sets -Dsun.io.useCanonCaches=false before the JVM caches it.
References

Affected packages

TuxCare:Ubuntu:20.04
libtomcat9-embed-java

Package

Name
libtomcat9-embed-java
Purl
pkg:deb/tuxcare/libtomcat9-embed-java?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
libtomcat9-java

Package

Name
libtomcat9-java
Purl
pkg:deb/tuxcare/libtomcat9-java?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
tomcat9

Package

Name
tomcat9
Purl
pkg:deb/tuxcare/tomcat9?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
tomcat9-admin

Package

Name
tomcat9-admin
Purl
pkg:deb/tuxcare/tomcat9-admin?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
tomcat9-common

Package

Name
tomcat9-common
Purl
pkg:deb/tuxcare/tomcat9-common?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
tomcat9-docs

Package

Name
tomcat9-docs
Purl
pkg:deb/tuxcare/tomcat9-docs?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
tomcat9-examples

Package

Name
tomcat9-examples
Purl
pkg:deb/tuxcare/tomcat9-examples?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"
tomcat9-user

Package

Name
tomcat9-user
Purl
pkg:deb/tuxcare/tomcat9-user?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.9+tuxcare.els8

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"