CVE-2026-8258
Medium
Description
A flaw has been found in Squirrel up to 3.2. Impacted is the function validate_format in the library sqstdlib/sqstdstring.cpp. Executing a manipulation can lead to stack-based buffer overflow. The attack can only be executed locally. 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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductSquirrel
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-121CWE-121CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Squirrel | 3.0, 3.1, 3.2 | — |
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