Input Validation Vulnerabilities in Snowflake Spark Connector

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Summary

CVECVE-2026-15183
StatePUBLISHED
AssignerSNOWFLAKE
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-14 09:16:40 UTC
Updated2026-07-15 20:08:02 UTC
DescriptionMultiple 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.

Risk And Classification

Primary CVSS: v4.0 9.2 CRITICAL from 412d305a-227d-44f9-a262-a31ba44f2aea

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.002080000 probability, percentile 0.109150000 (date 2026-07-15)

Problem Types: CWE-89 | CWE-441 | CWE-918 | CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | CWE-441 Unintended Proxy or Intermediary ('Confused Deputy') | CWE-918 Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
4.0412d305a-227d-44f9-a262-a31ba44f2aeaSecondary9.2CRITICALCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS9.2CRITICALCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Snowflake Snowflake Spark Connector affected 0.1.0 3.2.1 semver Not specified

References

ReferenceSourceLinkTags
docs.snowflake.com/en/release-notes/clients-drivers/spark-connector-2026 412d305a-227d-44f9-a262-a31ba44f2aea docs.snowflake.com
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