CVE-2026-8258

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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8258.json",
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-119",
        "CWE-121"
    ],
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "3.0"
                },
                {
                    "last_affected": "3.0"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/albertodemichelis/squirrel

Affected ranges

Type

GIT

Repo

https://github.com/albertodemichelis/squirrel

Events

Introduced

c52b25d864400197fa4d64c46254d8b1de06c2fa

Last affected

f92bc298784ceea459b12e2de33bdff672bfeb83

Database specific

{
    "extracted_events": [
        {
            "introduced": "3.1"
        },
        {
            "last_affected": "3.1"
        },
        {
            "introduced": "3.2"
        },
        {
            "last_affected": "3.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

3.*

3.1

3.2

v3.*

v3.1

v3.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8258.json"