UnratedRed Hat & Ubuntu Linux

SimpleEval vulnerability

USN-8301-1 Published May 25, 2026

CVE-2026-32640

Affected products & platforms

Red Hat & Ubuntu LinuxUnclassified

Summary

Byambadalai Sumiya discovered that SimpleEval did not properly restrict attribute access and callback handling inside a sandbox. An attacker could possibly use this issue to execute arbitrary code. Affected Ubuntu releases: 26.04, 25.10, 24.04, 22.04, 20.04, 18.04, 16.04. CVEs: CVE-2026-32640.

Affected versions

Ubuntu 26.04
Ubuntu 25.10
Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Apply available updates: `sudo apt update && sudo apt upgrade` (a standard system update installs the fix).

Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source

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