CVE-2023-1521: Mozilla Sccache

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.

Affected products

• Mozilla Sccache: before 0.4.0 (fixed in 0.4.0)

Published 2024-11-26. Last modified 2026-06-17.