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openSUSE Python-msgpack Buffer Overflow Vulnerability Fix Released

openSUSE Python-msgpack Buffer Overflow Vulnerability Fix Released

First seen 3 Sep 2026, 17:39 UTC • •
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ThreatCluster AI
ThreatCluster •September 4, 2026 at 17:16 UTC
  • •CVE-2026-57585 is a critical buffer overflow vulnerability in python-msgpack.
  • •Affected systems include various SUSE Linux Enterprise products.
  • •Patches are available and should be applied immediately to mitigate risks.

A critical buffer overflow vulnerability, CVE-2026-57585, was discovered in python-msgpack, affecting multiple SUSE Linux Enterprise products. The issue arises from reusing an Unpacker instance after an error, which can lead to an out-of-bounds read. This vulnerability has been patched in the latest updates for various SUSE products, including SUSE Linux Enterprise Server and High Performance Computing editions. System administrators are urged to apply the patches using recommended installation methods such as YaST or zypper. The vulnerability was published on June 30, 2026, and is categorized as a significant risk to affected systems. Proper patching is essential to mitigate potential exploitation risks. The advisory emphasizes the importance of keeping systems secure and up to date.

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Timeline

2026-06-30
CVE-2026-57585 published
Buffer overflow vulnerability in python-msgpack identified, leading to potential out-of-bounds read.
Linuxsecurity
2026-09-03
Patch released for python-msgpack
SUSE released updates to fix CVE-2026-57585 across multiple products, urging admins to apply patches.
Linuxsecurity

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