========================================================================== Ubuntu Security Notice USN-8301-1 May 25, 2026 simpleeval vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: SimpleEval could be made to run programs if it received specially crafted input. Software Description: - simpleeval: Python library for evaluating expressions Details: 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. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS python3-simpleeval 1.0.3-1+deb13u1build0.26.04.1 Ubuntu 25.10 python3-simpleeval 1.0.3-1+deb13u1build0.25.10.1 Ubuntu 24.04 LTS python3-simpleeval 0.9.12-1+deb12u1build0.24.04.1 Ubuntu 22.04 LTS python3-simpleeval 0.9.11-1ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 20.04 LTS python3-simpleeval 0.9.10-1+deb11u1build0.20.04.1 Available with Ubuntu Pro Ubuntu 18.04 LTS python-simpleeval 0.9.5-1ubuntu0.1~esm1 Available with Ubuntu Pro python3-simpleeval 0.9.5-1ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS python-simpleeval 0.8.7-1ubuntu0.1~esm1 Available with Ubuntu Pro python3-simpleeval 0.8.7-1ubuntu0.1~esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8301-1 CVE-2026-32640 Package Information: https://launchpad.net/ubuntu/+source/simpleeval/1.0.3-1+deb13u1build0.26.04.1 https://launchpad.net/ubuntu/+source/simpleeval/1.0.3-1+deb13u1build0.25.10.1 https://launchpad.net/ubuntu/+source/simpleeval/0.9.12-1+deb12u1build0.24.04.1
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