SUSE-SU-2026:2483-1: important: Security update for python-python-multipart

[SLE-UPDATES]

# Security update for python-python-multipart

Announcement ID: SUSE-SU-2026:2483-1  
Release Date: 2026-06-22T11:54:04Z  
Rating: important  
References:

  * bsc#1268488
  * bsc#1268496
  * bsc#1268500
  * bsc#1268506

  
Cross-References:

  * CVE-2026-53537
  * CVE-2026-53538
  * CVE-2026-53539
  * CVE-2026-53540

  
CVSS scores:

  * CVE-2026-53537 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-53537 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-53538 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-53538 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-53539 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-53539 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-53540 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-53540 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

  
Affected Products:

  * openSUSE Leap 15.6

  
  
An update that solves four vulnerabilities can now be installed.

## Description:

This update for python-python-multipart fixes the following issues

  * CVE-2026-53537: multipart/form-data with extended parameters can lead to
    file or parameter smuggling (bsc#1268506).
  * CVE-2026-53538: urlencoded requests containing semicolons can lead to form
    field smuggling (bsc#1268496).
  * CVE-2026-53539: small crafted body can cause a denial of service
    (bsc#1268500).
  * CVE-2026-53540: crafted request buffers can lead to degrading availability
    (bsc#1268488).

## 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 15.6  
    zypper in -t patch SUSE-2026-2483=1

## Package List:

  * openSUSE Leap 15.6 (noarch)
    * python311-python-multipart-0.0.9-150600.3.15.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-53537.html
  * https://www.suse.com/security/cve/CVE-2026-53538.html
  * https://www.suse.com/security/cve/CVE-2026-53539.html
  * https://www.suse.com/security/cve/CVE-2026-53540.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268488
  * https://bugzilla.suse.com/show_bug.cgi?id=1268496
  * https://bugzilla.suse.com/show_bug.cgi?id=1268500
  * https://bugzilla.suse.com/show_bug.cgi?id=1268506

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