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8 vulnerabilities found for Snowflake Connector for Python by Snowflake
CVE-2026-86600 (GCVE-0-2026-86600)
Vulnerability from nvd – Published: 2026-09-08 15:48 – Updated: 2026-09-10 15:23
VLAI
EPSS
VEX
Title
Workload identity attestation generated before login host validation in Snowflake drivers
Summary
In affected Snowflake drivers, WORKLOAD_IDENTITY authentication requests a cloud workload-identity token and attaches it to the login request without verifying that the configured host is a Snowflake endpoint. An attacker who can modify the connection configuration can cause the driver to mint a fresh attestation and send it to a host they control. The captured token can be replayed to Snowflake for its remaining lifetime in accounts where that workload identity is already registered. On Azure, the token audience is also taken from connection configuration. Combined with an attacker-controlled host, the driver can request a Managed Identity access token scoped to a non-Snowflake Azure resource and deliver it to the attacker. That path is the only case in which impact extends beyond Snowflake; it is bounded by the token lifetime and the managed identity’s permissions. Successful exploitation requires WORKLOAD_IDENTITY authentication on a workload that already has an ambient cloud identity. Patched driver versions restrict this authenticator to recognized Snowflake hosts. Users must manually upgrade.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:03 UTC
CWE
References
8 references
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
3.14.1 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
1.15.0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
2.1.1 , < 3.3.0
(semver)
|
|
| Snowflake | Snowflake Connector for .NET |
Affected:
4.7.0 , < 6.1.0
(semver)
|
|
| Snowflake | Snowflake ODBC Driver |
Affected:
3.9.0 , < 3.20.0
(semver)
|
|
| Snowflake | Snowflake PHP PDO Driver |
Affected:
3.6.0 , < 4.2.0
(semver)
|
|
| Snowflake | Snowflake Libsnowflakeclient |
Affected:
2.2.0 , < 2.10.0
(semver)
|
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"product": "Snowflake Connector for .NET",
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"status": "affected",
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CVE-2026-86597 (GCVE-0-2026-86597)
Vulnerability from nvd – Published: 2026-09-08 08:24 – Updated: 2026-09-10 15:37
VLAI
EPSS
VEX
Title
Sensitive information written to logs by Snowflake drivers
Summary
Insertion of sensitive information into log files in the Snowflake Python, Go, JDBC, Node.js, PHP PDO, and ODBC drivers allowed authentication tokens, query-result encryption keys, pre-signed cloud-storage URLs, and SAML assertions to be written to diagnostic logs in circumstances where the available log redaction did not cover all affected log paths and data types. An attacker with read access to the log destination, whether the local filesystem, a log aggregation service, or a CI/CD artifact store, could obtain credentials and decryption keys that, if still valid at the time of access, could be used to authenticate to the corresponding Snowflake account or cloud-storage object. Successful exploitation requires read access to the log destination, and impact is bounded by credential lifetime and object scope. The fix is available in Snowflake Connector for Python v4.7.3, Snowflake Go Driver v2.2.0, Snowflake JDBC Driver v4.3.4 (including the snowflake-jdbc-fips and snowflake-jdbc-thin), Snowflake Node.js Driver v3.3.0, Snowflake PHP PDO Driver v4.2.0, and Snowflake ODBC Driver v3.20.0. Users must manually upgrade and should securely delete previously generated diagnostic logs containing sensitive information where retention is not required.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 12:22 UTC
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
References
6 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
0 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
0 , < 3.3.0
(semver)
|
|
| Snowflake | Snowflake PHP PDO Driver |
Affected:
3.4.0 , < 4.2.0
(semver)
|
|
| Snowflake | Snowflake ODBC Driver |
Affected:
3.16.0 , < 3.20.0
(semver)
|
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CVE-2026-85525 (GCVE-0-2026-85525)
Vulnerability from nvd – Published: 2026-09-04 08:22 – Updated: 2026-09-10 15:44
VLAI
EPSS
VEX
Title
Improper OCSP response validation in Snowflake drivers
Summary
Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node.js drivers allowed a revoked TLS certificate to be accepted as valid, because OCSP responses were not reliably bound to the certificate being validated and definitive verification failures were treated as transient. A man-in-the-middle attacker holding a revoked certificate and its private key for a Snowflake or stage hostname could cause the driver to establish a TLS session to the attacker-controlled endpoint anyway, allowing the attacker to read and modify data transmitted within that connection. Successful exploitation requires that on-path position and the corresponding private key, and impact is limited to data carried within the intercepted connection. The fix is available in Snowflake Connector for Python v4.7.3, Snowflake Go Driver v2.2.0, Snowflake JDBC Driver v4.3.4 (including the snowflake-jdbc-fips and snowflake-jdbc-thin), and Snowflake Node.js Driver v3.3.0. Users must manually upgrade.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 19:40 UTC
CWE
References
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
0 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
0 , < 3.3.0
(semver)
|
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CVE-2026-15925 (GCVE-0-2026-15925)
Vulnerability from nvd – Published: 2026-07-16 05:31 – Updated: 2026-07-16 12:43
VLAI
EPSS
VEX
Title
Improper TLS Hostname Verification in Snowflake Connector for Python
Summary
Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this by intercepting or redirecting network traffic and presenting a certificate signed by any trusted CA for any domain, causing the connector to accept connections without validating that the certificate matched the requested hostname. Successful exploitation requires an on-path traffic interception capability (e.g. ARP/DNS poisoning, rogue access point, BGP hijacking, or malicious proxy/exit node). This vulnerability may have exposed credentials, query data, and staged file contents to interception and tampering, and may have enabled the attacker to issue arbitrary SQL within the context of the victim's connector session. Impact is limited by the privileges of the affected Snowflake role. The fix is available in Snowflake Connector for Python versions 4.7.1 and 3.18.1. Users must manually upgrade.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 12:43 UTC
CWE
- CWE-297 - Improper Validation of Certificate with Host Mismatch
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
3.17.4 , < 3.18.1
(semver)
Affected: 4.0.0 , < 4.7.1 (semver) |
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CVE-2026-86600 (GCVE-0-2026-86600)
Vulnerability from cvelistv5 – Published: 2026-09-08 15:48 – Updated: 2026-09-10 15:23
VLAI
EPSS
VEX
Title
Workload identity attestation generated before login host validation in Snowflake drivers
Summary
In affected Snowflake drivers, WORKLOAD_IDENTITY authentication requests a cloud workload-identity token and attaches it to the login request without verifying that the configured host is a Snowflake endpoint. An attacker who can modify the connection configuration can cause the driver to mint a fresh attestation and send it to a host they control. The captured token can be replayed to Snowflake for its remaining lifetime in accounts where that workload identity is already registered. On Azure, the token audience is also taken from connection configuration. Combined with an attacker-controlled host, the driver can request a Managed Identity access token scoped to a non-Snowflake Azure resource and deliver it to the attacker. That path is the only case in which impact extends beyond Snowflake; it is bounded by the token lifetime and the managed identity’s permissions. Successful exploitation requires WORKLOAD_IDENTITY authentication on a workload that already has an ambient cloud identity. Patched driver versions restrict this authenticator to recognized Snowflake hosts. Users must manually upgrade.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:03 UTC
CWE
References
8 references
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
3.14.1 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
1.15.0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
2.1.1 , < 3.3.0
(semver)
|
|
| Snowflake | Snowflake Connector for .NET |
Affected:
4.7.0 , < 6.1.0
(semver)
|
|
| Snowflake | Snowflake ODBC Driver |
Affected:
3.9.0 , < 3.20.0
(semver)
|
|
| Snowflake | Snowflake PHP PDO Driver |
Affected:
3.6.0 , < 4.2.0
(semver)
|
|
| Snowflake | Snowflake Libsnowflakeclient |
Affected:
2.2.0 , < 2.10.0
(semver)
|
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CVE-2026-86597 (GCVE-0-2026-86597)
Vulnerability from cvelistv5 – Published: 2026-09-08 08:24 – Updated: 2026-09-10 15:37
VLAI
EPSS
VEX
Title
Sensitive information written to logs by Snowflake drivers
Summary
Insertion of sensitive information into log files in the Snowflake Python, Go, JDBC, Node.js, PHP PDO, and ODBC drivers allowed authentication tokens, query-result encryption keys, pre-signed cloud-storage URLs, and SAML assertions to be written to diagnostic logs in circumstances where the available log redaction did not cover all affected log paths and data types. An attacker with read access to the log destination, whether the local filesystem, a log aggregation service, or a CI/CD artifact store, could obtain credentials and decryption keys that, if still valid at the time of access, could be used to authenticate to the corresponding Snowflake account or cloud-storage object. Successful exploitation requires read access to the log destination, and impact is bounded by credential lifetime and object scope. The fix is available in Snowflake Connector for Python v4.7.3, Snowflake Go Driver v2.2.0, Snowflake JDBC Driver v4.3.4 (including the snowflake-jdbc-fips and snowflake-jdbc-thin), Snowflake Node.js Driver v3.3.0, Snowflake PHP PDO Driver v4.2.0, and Snowflake ODBC Driver v3.20.0. Users must manually upgrade and should securely delete previously generated diagnostic logs containing sensitive information where retention is not required.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 12:22 UTC
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
References
6 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
0 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
0 , < 3.3.0
(semver)
|
|
| Snowflake | Snowflake PHP PDO Driver |
Affected:
3.4.0 , < 4.2.0
(semver)
|
|
| Snowflake | Snowflake ODBC Driver |
Affected:
3.16.0 , < 3.20.0
(semver)
|
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CVE-2026-85525 (GCVE-0-2026-85525)
Vulnerability from cvelistv5 – Published: 2026-09-04 08:22 – Updated: 2026-09-10 15:44
VLAI
EPSS
VEX
Title
Improper OCSP response validation in Snowflake drivers
Summary
Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node.js drivers allowed a revoked TLS certificate to be accepted as valid, because OCSP responses were not reliably bound to the certificate being validated and definitive verification failures were treated as transient. A man-in-the-middle attacker holding a revoked certificate and its private key for a Snowflake or stage hostname could cause the driver to establish a TLS session to the attacker-controlled endpoint anyway, allowing the attacker to read and modify data transmitted within that connection. Successful exploitation requires that on-path position and the corresponding private key, and impact is limited to data carried within the intercepted connection. The fix is available in Snowflake Connector for Python v4.7.3, Snowflake Go Driver v2.2.0, Snowflake JDBC Driver v4.3.4 (including the snowflake-jdbc-fips and snowflake-jdbc-thin), and Snowflake Node.js Driver v3.3.0. Users must manually upgrade.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 19:40 UTC
CWE
References
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
0 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
0 , < 3.3.0
(semver)
|
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CVE-2026-15925 (GCVE-0-2026-15925)
Vulnerability from cvelistv5 – Published: 2026-07-16 05:31 – Updated: 2026-07-16 12:43
VLAI
EPSS
VEX
Title
Improper TLS Hostname Verification in Snowflake Connector for Python
Summary
Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this by intercepting or redirecting network traffic and presenting a certificate signed by any trusted CA for any domain, causing the connector to accept connections without validating that the certificate matched the requested hostname. Successful exploitation requires an on-path traffic interception capability (e.g. ARP/DNS poisoning, rogue access point, BGP hijacking, or malicious proxy/exit node). This vulnerability may have exposed credentials, query data, and staged file contents to interception and tampering, and may have enabled the attacker to issue arbitrary SQL within the context of the victim's connector session. Impact is limited by the privileges of the affected Snowflake role. The fix is available in Snowflake Connector for Python versions 4.7.1 and 3.18.1. Users must manually upgrade.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 12:43 UTC
CWE
- CWE-297 - Improper Validation of Certificate with Host Mismatch
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
3.17.4 , < 3.18.1
(semver)
Affected: 4.0.0 , < 4.7.1 (semver) |
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