Security update for python-idna

Announcement ID: SUSE-SU-2026:2828-1
Release Date: 2026-07-09T18:30:14Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2026-45409 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-45409 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • CVE-2026-45409 ( NVD ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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-2026-45409 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products:
  • openSUSE Leap 15.4
  • Public Cloud Module 15-SP4
  • Python 3 Module 15-SP7
  • SUSE Linux Enterprise Desktop 15 SP7
  • SUSE Linux Enterprise High Performance Computing 15 SP4
  • SUSE Linux Enterprise Server 15 SP4
  • SUSE Linux Enterprise Server 15 SP7
  • SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • SUSE Manager Proxy 4.3
  • SUSE Manager Retail Branch Server 4.3
  • SUSE Manager Server 4.3

An update that solves one vulnerability can now be installed.

Description:

This update for python-idna fixes the following issue

  • CVE-2026-45409: specially crafted inputs to idna.encode() can bypass earlier security fix (bsc#1265413).

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:

  • Python 3 Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-2828=1
  • Public Cloud Module 15-SP4
    zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-2828=1
  • openSUSE Leap 15.4
    zypper in -t patch SUSE-2026-2828=1

Package List:

  • Python 3 Module 15-SP7 (noarch)
    • python311-idna-3.4-150400.11.13.1
  • Public Cloud Module 15-SP4 (noarch)
    • python311-idna-3.4-150400.11.13.1
  • openSUSE Leap 15.4 (noarch)
    • python311-idna-3.4-150400.11.13.1

References: