CVE-2026-33491

Description

Zen C is a systems programming language that compiles to human-readable GNU C/C11. Prior to version 0.4.4, a stack-based buffer overflow vulnerability in the Zen C compiler allows attackers to cause a compiler crash or potentially execute arbitrary code by providing a specially crafted Zen C source file (`.zc`) with excessively long struct, function, or trait identifiers. Users are advised to update to Zen C version v0.4.4 or later to receive a patch.

PUBLISHED Reserved 2026-03-20 | Published 2026-03-26 | Updated 2026-03-27 | Assigner GitHub_M

Problem types

CWE-121: Stack-based Buffer Overflow

CWE-787: Out-of-bounds Write

Product status

References

github.com/...g/zenc/security/advisories/GHSA-rv74-w6q7-h8xr

cve.org (CVE-2026-33491)

nvd.nist.gov (CVE-2026-33491)

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