UBUNTU-CVE-2026-78323

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Source
https://ubuntu.com/security/CVE-2026-78323
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-78323
Upstream
  • CVE-2026-78323
Published
2026-08-24T12:16:00Z
Modified
2026-09-02T19:36:46.912537110Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.

References

Affected packages

Ubuntu:16.04:LTS
jss

Package

Name
jss
Purl
pkg:deb/ubuntu/jss?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.3.1-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.3.1-6",
            "binary_name": "libjss-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json"
Ubuntu:18.04:LTS
jss

Package

Name
jss
Purl
pkg:deb/ubuntu/jss?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.4.2-1
4.4.2-2
4.4.2-3
4.4.2-6
4.4.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.4.3-1",
            "binary_name": "libjss-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json"
Ubuntu:20.04:LTS
jss

Package

Name
jss
Purl
pkg:deb/ubuntu/jss?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.6.1-3
4.6.2-1
4.6.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.6.3-1",
            "binary_name": "libjss-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json"
Ubuntu:22.04:LTS
jss

Package

Name
jss
Purl
pkg:deb/ubuntu/jss?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.8.0-2
5.*
5.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.0.0-1",
            "binary_name": "libjss-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json"
Ubuntu:24.04:LTS
jss

Package

Name
jss
Purl
pkg:deb/ubuntu/jss?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.4.2-1
5.5.0-1
5.5.0-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.5.0-1build1",
            "binary_name": "libjss-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json"
Ubuntu:26.04:LTS
jss

Package

Name
jss
Purl
pkg:deb/ubuntu/jss?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.5.0-1build1
5.9.0~beta3-3ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.9.0~beta3-3ubuntu1",
            "binary_name": "libjss-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78323.json"