CVE-2026-33491

Name of the Vulnerable Software and Affected Versions Zen C versions prior to 0.4.4

Description A stack-based buffer overflow exists in the Zen C compiler. This issue is due to a flaw in identifier mangling. By supplying a specially crafted Zen C source file (.zc) containing excessively long struct, function, or trait identifiers, an attacker can cause a compiler crash or potentially execute arbitrary code. The vulnerability affects the processing of identifiers within the compiler.

Recommendations Update to Zen C version 0.4.4 or later.