UBUNTU-CVE-2026-49289

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Source
https://ubuntu.com/security/CVE-2026-49289
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-49289
Upstream
Published
2026-08-19T15:17:00Z
Modified
2026-09-15T20:16:37Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.

References

Affected packages

Ubuntu:24.04:LTS
simplesamlphp

Package

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

Affected ranges

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

Affected versions

1.*
1.19.7-1
1.19.7-1+deb12u1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "simplesamlphp",
            "binary_version": "1.19.7-1+deb12u1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json"
Ubuntu:26.04:LTS
simplesamlphp

Package

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

Affected ranges

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

Affected versions

1.*
1.19.7-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "simplesamlphp",
            "binary_version": "1.19.7-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json"
Ubuntu:Pro:16.04:LTS
simplesamlphp

Package

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

Affected ranges

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

Affected versions

1.*
1.13.2-1
1.14.0-1
1.14.0-1ubuntu2
1.14.0-1ubuntu2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "simplesamlphp",
            "binary_version": "1.14.0-1ubuntu2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json"
Ubuntu:Pro:18.04:LTS
simplesamlphp

Package

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

Affected ranges

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

Affected versions

1.*
1.14.15-1
1.15.0-1
1.15.1-1
1.15.2-1
1.15.3-1
1.15.3-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "simplesamlphp",
            "binary_version": "1.15.3-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json"
Ubuntu:Pro:20.04:LTS
simplesamlphp

Package

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

Affected ranges

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

Affected versions

1.*
1.17.5-1
1.17.6-1
1.17.6-2
1.18.1-1
1.18.4-1
1.18.4-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "simplesamlphp",
            "binary_version": "1.18.4-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json"
Ubuntu:Pro:22.04:LTS
simplesamlphp

Package

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

Affected ranges

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

Affected versions

1.*
1.19.1-1
1.19.1-1.1
1.19.1-1.1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "simplesamlphp",
            "binary_version": "1.19.1-1.1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49289.json"