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4.8
Wren up to 0.4.0 allows local code execution through recursion
CVE-2026-3385
Summary
Wren, an interpreted programming language, has a bug in its compiler that can cause it to run indefinitely, leading to a denial of service or potentially allow an attacker to execute malicious code. This issue affects Wren versions up to 0.4.0. We recommend updating to a patched version of Wren to fix this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| wren | wren | <= 0.4.0 | – |
Original title
A vulnerability was detected in wren-lang wren up to 0.4.0. Affected is the function resolveLocal of the file src/vm/wren_compiler.c. The manipulation results in uncontrolled recursion. Attacking l...
Original description
A vulnerability was detected in wren-lang wren up to 0.4.0. Affected is the function resolveLocal of the file src/vm/wren_compiler.c. The manipulation results in uncontrolled recursion. Attacking locally is a requirement. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
nvd CVSS2.0
1.7
nvd CVSS3.1
3.3
nvd CVSS4.0
4.8
Vulnerability type
CWE-404
CWE-674
Published: 1 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026