Snowflake Spark Connector up to 3.2.0 OAuth Client request.url injection

Summaryinfo

A vulnerability labeled as critical has been found in Snowflake Spark Connector up to 3.2.0. This affects an unknown function of the component OAuth Client. The manipulation of the argument request.url results in injection. This vulnerability is identified as CVE-2026-15183. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Snowflake Spark Connector up to 3.2.0. It has been classified as critical. Affected is an unknown part of the component OAuth Client. The manipulation of the argument request.url with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple input validation vulnerabilities in the Snowflake Spark Connector (spark-snowflake) versions prior to 3.2.1 can allow attackers to exfiltrate OAuth client credentials, execute arbitrary SQL with the connector's Snowflake role, or redirect COPY operations to attacker-controlled storage. An attacker could exploit these vulnerabilities by supplying a crafted OAuth token request URL, placing malicious files in an ingestion pipeline, injecting SQL via staging options in a shared Spark environment , or issuing runtime SET commands in a shared Spark-SQL session to inject arbitrary SQL into the SnowflakeFallbackCatalog's option map, which executes under the cluster admin's JDBC credentials. Successful exploitation may result in credential theft, unauthorized access to Snowflake account data, or privilege escalation within connected infrastructure.

The advisory is shared for download at docs.snowflake.com. This vulnerability is traded as CVE-2026-15183 since 07/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1055.

Upgrading to version 3.2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-43644). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Snowflake

Name

• Spark Connector

Version

• 3.0
• 3.1
• 3.2.0

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Once again VulDB remains the best source for vulnerability data.

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