SUSE-SU-2026:0855-1: important: Security update for c3p0 and mchange-commons

[SLE-SECURITY-UPDATES]

# Security update for c3p0 and mchange-commons

Announcement ID: SUSE-SU-2026:0855-1  
Release Date: 2026-03-10T05:06:42Z  
Rating: important  
References:

  * bsc#1258913
  * bsc#1258942
  * bsc#1259313

  
Cross-References:

  * CVE-2026-27727
  * CVE-2026-27830

  
CVSS scores:

  * CVE-2026-27727 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-27727 ( SUSE ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-27727 ( NVD ):  8.9
    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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-27830 ( SUSE ):  8.9
    CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-27830 ( SUSE ):  8.0 CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-27830 ( NVD ):  8.9
    CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  
Affected Products:

  * openSUSE Leap 15.4
  * openSUSE Leap 15.6

  
  
An update that solves two vulnerabilities and has one security fix can now be
installed.

## Description:

This update for c3p0 and mchange-commons fixes the following issues:

c3p0:

  * Security issues fixed:

  * CVE-2026-27830: Fixed unsafe object deserialization (bsc#1258942)

  * Fix the null pointer exception in the userOverridesAsString method
    (bsc#1259313).

mchange-commons:

  * Security issues fixed:

  * CVE-2026-27727: Disabled remote ClassLoading when dereferencing
    javax.naming.Reference instances (bsc#1258913)

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.4  
    zypper in -t patch SUSE-2026-855=1

  * openSUSE Leap 15.6  
    zypper in -t patch openSUSE-SLE-15.6-2026-855=1

## Package List:

  * openSUSE Leap 15.4 (noarch)
    * c3p0-0.9.5.5-150400.3.5.1
    * c3p0-javadoc-0.9.5.5-150400.3.5.1
    * mchange-commons-javadoc-0.2.20-150400.3.3.1
    * mchange-commons-0.2.20-150400.3.3.1
  * openSUSE Leap 15.6 (noarch)
    * c3p0-0.9.5.5-150400.3.5.1
    * c3p0-javadoc-0.9.5.5-150400.3.5.1
    * mchange-commons-javadoc-0.2.20-150400.3.3.1
    * mchange-commons-0.2.20-150400.3.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-27727.html
  * https://www.suse.com/security/cve/CVE-2026-27830.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258913
  * https://bugzilla.suse.com/show_bug.cgi?id=1258942
  * https://bugzilla.suse.com/show_bug.cgi?id=1259313

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