CVE-2026-2858
Low
Description
A vulnerability was identified in wren-lang wren up to 0.4.0. This affects the function peekChar of the file src/vm/wren_compiler.c of the component Source File Parser. Such manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
SeverityLow
CVSS3.3
Exploit probability—
ProductWren
PublishedFeb 20, 2026
First seenFeb 20, 2026
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wren wren | v ≤ 0.4.0 | — |
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