CVE-2026-3386CWE-119CWE-125

wren-lang wren wren_compiler.c emitOp out-of-bounds

Medium · published March 1, 2026

CVSS v4.0
4.8
EPSS
0%
Percentile
9.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
4.8 · MEDIUM
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/E:P
EPSS
0.00204 · 9.9th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-125 · Out-of-bounds Read
Published
2026-03-01T08:32Z
EPSS history
Timeline
  • 01 MAR 08:32Z
    wren-lang wren wren_compiler.c emitOp out-of-bounds
    cvelistv5