What’s Vulnerable › Vulnerabilities

CVE-2026-3293: snowflakedb snowflake-jdbc JDBC URL SdkProxyRoutePlanner.java SdkProxyRoutePlanner redos

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-27 · updated 2026-06-17
• Weakness: CWE-400

Description

A weakness has been identified in snowflakedb snowflake-jdbc up to 4.0.1. Impacted is the function SdkProxyRoutePlanner of the file src/main/java/net/snowflake/client/internal/core/SdkProxyRoutePlanner.java of the component JDBC URL Handler. Executing a manipulation of the argument nonProxyHosts can lead to inefficient regular expression complexity. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. This patch is called 5fb0a8a318a2ed87f4022a1f56e742424ba94052. A patch should be applied to remediate this issue.

Affected products

• snowflakedb snowflake-jdbc: before 4.0.1 — fixed in 4.0.1

How to fix

Upgrade to a fixed version: snowflakedb snowflake-jdbc 4.0.1. Check the vendor advisory for mitigations.

References

• https://github.com/snowflakedb/snowflake-jdbc/
• https://github.com/snowflakedb/snowflake-jdbc/commit/5fb0a8a318a2ed87f4022a1f56e742424ba94052
• https://github.com/snowflakedb/snowflake-jdbc/issues/2505
• https://github.com/snowflakedb/snowflake-jdbc/issues/2505#issue-3951994646
• https://snowflakecomputing.atlassian.net/browse/SNOW-3104251
• https://vuldb.com/?ctiid.348035
• https://vuldb.com/?id.348035
• https://vuldb.com/?submit.760428

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