Vulnerability · Published Mar 1, 2026 · Assigned by VulDB
CVE-2026-3385wren-lang wren wren_compiler.c resolveLocal recursion
Low 3.3
In plain English
A low-severity security flaw in wren from wren-lang. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 91.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-674, CWE-404 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
References
- VDB-348271 | wren-lang wren wren_compiler.c resolveLocal recursion vdb-entry, technical-description
- VDB-348271 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #761305 | wren-lang wren main-branch Heap-based Buffer Overflow third-party-advisory
- https://github.com/wren-lang/wren/issues/1218 issue-tracking
- https://github.com/oneafter/0122/blob/main/i1218/repro exploit
- https://github.com/wren-lang/wren/ product