What is CVE-2026-16870?

CVE-2026-16870 is a high-severity vulnerability in Snowflake Libsnowflakeclient, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-24.

How severe is CVE-2026-16870?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Snowflake Libsnowflakeclient

CVE-2026-16870

Multiple security vulnerabilities in Snowflake libsnowflakeclient versions prior to 2.9.2 could allow remote code execution and credential exfiltration. A stack-based buffer overflow in the file download path could allow remote code execut…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Snowflake Libsnowflakeclient — versions 0.1.1, 0
Snowflake Odbc Driver — versions 2.16.3
Snowflake Php Pdo Driver — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow
CWE-787 — Out-of-bounds Write
CWE-918 — Server-Side Request Forgery (SSRF)

References

Snowflake Libsnowflakeclient Release Notes

Frequently asked questions

What is CVE-2026-16870?: CVE-2026-16870 is a high-severity vulnerability in Snowflake Libsnowflakeclient, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-24.
How severe is CVE-2026-16870?: High severity. CVSS v3 base score is 8.8 out of 10.