Security update for python-cbor2

Announcement ID: SUSE-SU-2026:21139-1
Release Date: 2026-04-07T11:57:38Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-68131 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVE-2025-68131 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2025-68131 ( NVD ): 5.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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-2025-68131 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2026-26209 ( 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-2026-26209 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-26209 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Server 16.0
  • SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves two vulnerabilities can now be installed.

Description:

This update for python-cbor2 fixes the following issues:

  • CVE-2025-68131: CBORDecoder reuse across trust boundaries can lead to leak of shareable values from previous decode calls via attacker-controlled messages (bsc#1255783).
  • CVE-2026-26209: uncontrolled recursion via crafted CBOR payloads can cause a denial of service (bsc#1260367).

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:

  • SUSE Linux Enterprise Server 16.0
    zypper in -t patch SUSE-SLES-16.0-482=1
  • SUSE Linux Enterprise Server for SAP applications 16.0
    zypper in -t patch SUSE-SLES-16.0-482=1

Package List:

  • SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    • python313-cbor2-debuginfo-5.6.5-160000.4.1
    • python-cbor2-debugsource-5.6.5-160000.4.1
    • python313-cbor2-5.6.5-160000.4.1
  • SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    • python313-cbor2-debuginfo-5.6.5-160000.4.1
    • python-cbor2-debugsource-5.6.5-160000.4.1
    • python313-cbor2-5.6.5-160000.4.1

References: