UBUNTU-CVE-2026-27727

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Source
https://ubuntu.com/security/CVE-2026-27727
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27727.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-27727
Upstream
Downstream
Related
Published
2026-02-25T17:25:00Z
Modified
2026-08-18T22:01:30.459803770Z
Severity
  • 8.9 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
  • 8.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

mchange-commons-java, a library that provides Java utilities, includes code that mirrors early implementations of JNDI functionality, including support for remote factoryClassLocation values, by which code can be downloaded and invoked within a running application. If an attacker can provoke an application to read a maliciously crafted jaxax.naming.Reference or serialized object, they can provoke the download and execution of malicious code. Implementations of this functionality within the JDK were disabled by default behind a System property that defaults to false, com.sun.jndi.ldap.object.trustURLCodebase. However, since mchange-commons-java includes an independent implementation of JNDI derefencing, libraries (such as c3p0) that resolve references via that implementation could be provoked to download and execute malicious code even after the JDK was hardened. Mirroring the JDK patch, mchange-commons-java's JNDI functionality is gated by configuration parameters that default to restrictive values starting in version 0.4.0. No known workarounds are available. Versions prior to 0.4.0 should be avoided on application CLASSPATHs.

References

Affected packages

Ubuntu:Pro:16.04:LTS / c3p0

Package

Name
c3p0
Purl
pkg:deb/ubuntu/c3p0?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.1.2-9+deb8u1ubuntu0.16.04.1~esm2

Affected versions

0.*
0.9.1.2-9
0.9.1.2-9+deb8u1build0.16.04.1
0.9.1.2-9+deb8u1ubuntu0.16.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.9.1.2-9+deb8u1ubuntu0.16.04.1~esm2",
            "binary_name": "libc3p0-java"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27727.json"

Ubuntu:Pro:20.04:LTS / c3p0

Package

Name
c3p0
Purl
pkg:deb/ubuntu/c3p0?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.1.2-10ubuntu0.20.04.1+esm1

Affected versions

0.*
0.9.1.2-10
0.9.1.2-10ubuntu0.20.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.9.1.2-10ubuntu0.20.04.1+esm1",
            "binary_name": "libc3p0-java"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27727.json"

Ubuntu:25.10 / c3p0

Package

Name
c3p0
Purl
pkg:deb/ubuntu/c3p0?arch=source&distro=questing

Affected ranges

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

Affected versions

0.*
0.9.1.2-10ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.9.1.2-10ubuntu2",
            "binary_name": "libc3p0-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27727.json"