UBUNTU-CVE-2026-43827

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Source
https://ubuntu.com/security/CVE-2026-43827
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-43827
Upstream
  • CVE-2026-43827
Published
2026-05-25T21:16:00Z
Modified
2026-05-29T18:00:46.723907034Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:U/RE:L/U:Amber CVSS Calculator
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Default configurations of Apache Shiro have a session fixation vulnerability. This issue affects Apache Shiro from 1.0 to 2.1.0, and 3.0.0-alpha-1. Users are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue. In the affected versions, when a session already exists, it is not invalidated upon successful login, nor is a new session being generated with a new ID.

References

Affected packages

Ubuntu:20.04:LTS
shiro

Package

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

Affected ranges

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

Affected versions

1.*
1.3.2-4
1.3.2-4ubuntu0.1
1.3.2-4ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.2-4ubuntu0.2",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"
Ubuntu:22.04:LTS
shiro

Package

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

Affected ranges

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

Affected versions

1.*
1.3.2-4
1.3.2-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.2-5",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"
Ubuntu:25.10
shiro

Package

Name
shiro
Purl
pkg:deb/ubuntu/shiro?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.3.2-6ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.2-6ubuntu1",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"
Ubuntu:26.04:LTS
shiro

Package

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

Affected ranges

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

Affected versions

1.*
1.3.2-6ubuntu1
1.3.2-6ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.2-6ubuntu2",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"
Ubuntu:Pro:16.04:LTS
shiro

Package

Name
shiro
Purl
pkg:deb/ubuntu/shiro?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

1.*
1.2.4-1
1.2.4-1ubuntu0.1~esm1
1.2.4-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.4-1ubuntu0.1~esm2",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"
Ubuntu:Pro:18.04:LTS
shiro

Package

Name
shiro
Purl
pkg:deb/ubuntu/shiro?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

1.*
1.3.2-2
1.3.2-3~18.04
1.3.2-3~18.04.1
1.3.2-3ubuntu0.18.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.2-3ubuntu0.18.04.1~esm1",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"
Ubuntu:Pro:24.04:LTS
shiro

Package

Name
shiro
Purl
pkg:deb/ubuntu/shiro?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

1.*
1.3.2-5
1.3.2-5ubuntu0.24.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.2-5ubuntu0.24.04.1~esm1",
            "binary_name": "libshiro-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43827.json"