CVE-2026-3386

medium

Description

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

https://vuldb.com/?submit.761306

https://vuldb.com/?id.348272

https://github.com/oneafter/0122/blob/main/i1219/repro

https://vuldb.com/?ctiid.348272

https://github.com/wren-lang/wren/issues/1219

https://github.com/wren-lang/wren/

Details

Source: Mitre, NVD

Published: 2026-03-01

Updated: 2026-03-05

Risk Information

CVSS v2

Base Score: 1.7

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

CVSS v4

Base Score: 4.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00013