Vulnerability in Snowflake JDBC Driver Affecting Local Argument Manipulation
CVE-2026-3293

4.8MEDIUM

Key Information:

Vendor

Snowflakedb

Status
Snowflake-jdbc
Vendor
CVE Published:
27 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3293?

A vulnerability has been found in the Snowflake JDBC driver, specifically within the SdkProxyRoutePlanner function. This weakness allows for local exploitation through manipulation of the nonProxyHosts argument, resulting in inefficient regular expression complexity. An attacker could leverage this flaw to execute local attacks that may disrupt normal operations. A public exploit has been made available, highlighting the need for immediate remediation. Users are encouraged to apply the patch identified as commit 5fb0a8a318a2ed87f4022a1f56e742424ba94052 to mitigate this vulnerability.

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Deploy the Patch

Affected Version(s)

snowflake-jdbc 4.0.0

snowflake-jdbc 4.0.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3293 - Proof of Concept

References

https://vuldb.com/?id.348035
vdb-entrytechnical-description
https://vuldb.com/?ctiid.348035
signaturepermissions-required
https://vuldb.com/?submit.760428
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fushuling (VulDB User)
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