UBUNTU-CVE-2026-49268

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Source
https://ubuntu.com/security/CVE-2026-49268
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-49268
Upstream
  • CVE-2026-49268
Published
2026-06-17T14:17:00Z
Modified
2026-06-24T11:01:41.892488913Z
Severity
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/S:P/AU:Y/R:A/RE:L/U:Red CVSS Calculator
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A remote attacker can inject LDAP special characters into the Distinguished Name (DN) construction in DefaultLdapRealm class. User-supplied username input is directly concatenated into the LDAP DN template without any escaping of RFC 2253 special characters. This allows an attacker to manipulate the DN structure used for LDAP bind authentication, potentially bypassing authentication or impersonating other users. This issue affects all Apache Shiro versions through 2.2.0, and 3.0.0-alpha-1 when using DefaultLdapRealm Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue.

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_name": "libshiro-java",
            "binary_version": "1.3.2-4ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.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_name": "libshiro-java",
            "binary_version": "1.3.2-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.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_name": "libshiro-java",
            "binary_version": "1.3.2-6ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.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_name": "libshiro-java",
            "binary_version": "1.3.2-6ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.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_name": "libshiro-java",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.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_name": "libshiro-java",
            "binary_version": "1.3.2-3ubuntu0.18.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.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_name": "libshiro-java",
            "binary_version": "1.3.2-5ubuntu0.24.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49268.json"