CVE-2026-3386

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.
References
Link Resource
https://github.com/oneafter/0122/blob/main/i1219/repro Exploit
https://github.com/wren-lang/wren/ Product
https://github.com/wren-lang/wren/issues/1219 Exploit Issue Tracking Vendor Advisory
https://vuldb.com/?ctiid.348272 Permissions Required VDB Entry
https://vuldb.com/?id.348272 Third Party Advisory VDB Entry
https://vuldb.com/?submit.761306 Third Party Advisory VDB Entry
Configurations

Configuration 1 (hide)

cpe:2.3:a:wren:wren:*:*:*:*:*:*:*:*

History

05 Mar 2026, 01:53

Type Values Removed Values Added
First Time Wren wren
Wren
CPE cpe:2.3:a:wren:wren:*:*:*:*:*:*:*:*
Summary
  • (es) Se ha encontrado una falla en wren-lang wren hasta 0.4.0, la cual afeacta a la función emitOp del archivo src/vm/wren_compiler.c. Su manipulación causa lectura fuera de límites. Es posible lanzar el ataque en el host local. El exploit ha sido publicado y puede ser usado. Se informó con antelación del problema al proyecto, a través de un informe de incidencias, pero aún no ha respondido.
References () https://github.com/oneafter/0122/blob/main/i1219/repro - () https://github.com/oneafter/0122/blob/main/i1219/repro - Exploit
References () https://github.com/wren-lang/wren/ - () https://github.com/wren-lang/wren/ - Product
References () https://github.com/wren-lang/wren/issues/1219 - () https://github.com/wren-lang/wren/issues/1219 - Exploit, Issue Tracking, Vendor Advisory
References () https://vuldb.com/?ctiid.348272 - () https://vuldb.com/?ctiid.348272 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.348272 - () https://vuldb.com/?id.348272 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.761306 - () https://vuldb.com/?submit.761306 - Third Party Advisory, VDB Entry

01 Mar 2026, 09:15

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-01 09:15

Updated : 2026-03-05 01:53


NVD link : CVE-2026-3386

Mitre link : CVE-2026-3386

CVE.ORG link : CVE-2026-3386


JSON object : View

Products Affected

wren

  • wren
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-125

Out-of-bounds Read