A flaw has been found in wren-lang wren up to 0.4.0.... · CVE-2026-3386 · GitHub Advisory Database · GitHub

A flaw has been found in wren-lang wren up to 0.4.0....

Moderate severity Unreviewed Published Mar 1, 2026 to the GitHub Advisory Database • Updated Mar 5, 2026

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

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

Published by the National Vulnerability Database

Mar 1, 2026

Published to the GitHub Advisory Database Mar 1, 2026

Last updated Mar 5, 2026

Weaknesses

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. Learn more on MITRE.

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer. Learn more on MITRE.