Stack-based Buffer Overflow Affecting snowflakedb/libsnowflakeclient package, versions [,2.9.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-SNOWFLAKEDBLIBSNOWFLAKECLIENT-18306555
- published25 Jul 2026
- disclosed24 Jul 2026
- creditUnknown
Introduced: 24 Jul 2026
CVE-2026-16870 (opens in a new tab)How to fix?
Upgrade snowflakedb/libsnowflakeclient to version 2.9.2 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the file download process. An attacker can execute arbitrary code or cause memory corruption by uploading a file with a crafted encryption metadata field or a crafted initialization vector metadata field to a shared internal stage, which is later downloaded by a victim process. This is only exploitable if principals with different privilege levels share the same internal stage. Additionally, improper validation of connection parameters allows attacker-controlled input to redirect outbound authentication requests, potentially exfiltrating credentials and tokens. This is only exploitable if a lower-privileged principal can influence connection configuration while higher-privileged service credentials are in use.