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  4. CVE 2026 123859 sql injection via unescaped dataframe column
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Back to active CVEs
High · CVSS 8.1CVE-2026-123859

SQL Injection via unescaped DataFrame column names in Snowflake Connector for Python and Snowflake Connector for Python (Universal Core)CVE-2026-123859

Answer in brief

CVE-2026-123859 records a High severity (CVSS 8.1) vulnerability in SQL Injection via unescaped DataFrame column names in Snowflake Connector for Python and Snowflake Connector for Python (Universal Core). The current sources do not mark it as known exploited. The current feed maps Snowflake/snowflake-connector-python (generic), Snowflake/snowflake-connector-python (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 6, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Nov 6, 2026Material review Nov 6, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.1
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Snowflake/snowflake-connector-python (generic), Snowflake/snowflake-connector-python (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Snowflake/snowflake-connector-pythongeneric>=2.3.4 <4.8.14.8.1
Snowflake/snowflake-connector-pythongeneric>=5.0.0b1 <5.2.05.2.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Snowflake/snowflake-connector-python, Snowflake/snowflake-connector-python.
  2. 2Review the reported fix. Update Snowflake/snowflake-connector-python to 4.8.1; Snowflake/snowflake-connector-python to 5.2.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 6, 2026

Sources and claim methodology

  • Source referencedocs.snowflake.com
  • Source referencedocs.snowflake.com
Upstream source description

When identifier escaping is disabled through a non-default configuration, the write_pandas() data-loading functionality in the Snowflake Connector for Python and the Snowflake Connector for Python (Universal Core) did not escape DataFrame column names before including them in generated SQL, which could allow SQL injection. In both products, a crafted column name could have been used to chain additional SQL statements onto the generated statement, potentially allowing an attacker to read, modify, or delete other data accessible to the application's Snowflake role. Exploitation required an application to pass attacker controlled column names into this functionality. The fix is available in Snowflake Connector for Python version 4.8.1 and Snowflake Connector for Python (Universal Core) version 5.2.0. Users must upgrade manually.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Wazuh before 4.14.9 SQL Injection via WazuhDBBackend _substitute_paramsAlso CWE-89
  • Posit Workbench code-server session-state RPC (get_last_seen) SQL injectionAlso CWE-89
  • Craft CMS 4.0.0 before 4.18.9 SQL Injection via Element Search EndpointAlso CWE-89
  • Craft CMS 4.0.0 before 4.18.9 Blind SQL Injection via getNext/getPrev CriteriaAlso CWE-89
  • Craft CMS 4.0.0 before 4.18.9 Unauthenticated SQL Injection via GraphQL Eager-Load SelectAlso CWE-89

Record context

Vulnerability class
SQL Injection
EPSS
Not reported
CWE IDs
CWE-89
Source
CVE List V5
Source checked
Nov 6, 2026
References
2 linked sources
Open source record