CLSA-2026-1784541319

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1784541319
Upstream
Published
2026-07-20T09:55:41Z
Modified
2026-10-26T09:32:05Z
Summary
Fix CVE(s): CVE-2026-55957
Details
  • SECURITY UPDATE: JNDIRealm credential validation bypass when configured to use GSSAPI
    • debian/patches/CVE-2026-55957.patch: in bindAsUser preserve the current SASL environment, move userCredentialsAdd inside the try, strip Context.SECURITY_AUTHENTICATION="GSSAPI" before the LDAP bind so the provided username/password are actually validated, and restore the original SASL setting in a finally block along with userCredentialsRemove. Also updates docs/config/realm.xml to document that GSSAPI is skipped for calls made via HttpServletRequest.login(String, String).
    • CVE-2026-55957
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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.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.els5

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"