Wren-lang vulnerabilities
Published CVEs affecting Wren-lang products: 5 record(s), with severity, exploitation and fixes.
CVE-2026-3387
Medium · 5.5
CWE-404 Mar 1, 2026
wren-lang wren wren_compiler.c getByteCountForArguments null pointer dereference
A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVE-2026-3386
High · 7.1
CWE-125 Mar 1, 2026
wren-lang wren wren_compiler.c emitOp out-of-bounds
A flaw has been found in wren-lang wren up to 0.4.0. Affected by this vulnerability is the function emitOp of the file src/vm/wren_compiler.c. This manipulation causes out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVE-2026-3385
Medium · 5.5
CWE-674 Mar 1, 2026
wren-lang wren wren_compiler.c resolveLocal recursion
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.
CVE-2026-2858
High · 7.1
CWE-125 Feb 20, 2026
wren-lang wren Source File wren_compiler.c peekChar out-of-bounds
A vulnerability was identified in wren-lang wren up to 0.4.0. This affects the function peekChar of the file src/vm/wren_compiler.c of the component Source File Parser. Such manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
CVE-2026-2657
Medium · 5.5
CWE-119 Feb 18, 2026
wren-lang wren Error Message wren_compiler.c printError stack-based overflow
A vulnerability has been found in wren-lang wren up to 0.4.0. This impacts the function printError of the file src/vm/wren_compiler.c of the component Error Message Handler. Such manipulation leads to stack-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.