CVE-2026-2657CWE-119CWE-121

wren-lang wren Error Message wren_compiler.c printError stack-based overflow

Medium · published February 18, 2026

CVSS v4.0
4.8
EPSS
0%
Percentile
14.5
In the wild
Unconfirmed
What it is

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.

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
0.00242 · 14.5th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-02-18T16:32Z
EPSS history
Timeline
  • 18 FEB 16:32Z
    wren-lang wren Error Message wren_compiler.c printError stack-based overflow
    cvelistv5