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4 vulnerabilities found for Snowflake Libsnowflakeclient by Snowflake
CVE-2026-86600 (GCVE-0-2026-86600)
Vulnerability from nvd – Published: 2026-09-08 15:48 – Updated: 2026-09-08 15:48
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)
CWE
Assigner
References
8 references
Impacted products
8 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 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
2.1.1 , < 3.3.0
(npm)
|
|
| 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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},
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CVE-2026-16870 (GCVE-0-2026-16870)
Vulnerability from nvd – Published: 2026-07-24 04:40 – Updated: 2026-07-24 17:23
VLAI
EPSS
VEX
Title
Multiple Security Vulnerabilities in Snowflake libsnowflakeclient
Summary
Multiple security vulnerabilities in Snowflake libsnowflakeclient versions prior to 2.9.2 could allow remote code execution and credential exfiltration. A stack-based buffer overflow in the file download path could allow remote code execution on a victim host. An attacker could exploit this by uploading a file with a crafted encryption metadata field to a shared internal stage that a victim process later downloads, and impact would be limited to deployments where principals with different privilege levels share the same internal stage. A related out-of-bounds write in the same download path could allow memory corruption with attacker-controlled write primitives. An attacker may exploit this through a crafted initialization vector metadata field on a shared stage, and impact would be limited by the same stage-write precondition. Improper validation of connection parameters could allow an attacker-controlled input to redirect outbound authentication requests — including credentials and tokens — to an attacker-controlled endpoint. Impact is limited to embedding deployments where a lower-privileged principal can influence connection configuration while higher-privileged service credentials are in use. The fix is available in Snowflake libsnowflakeclient version 2.9.2. The Snowflake PHP PDO Driver and Snowflake ODBC Driver embed the affected library; fixes are available in versions 4.1.0 and 3.19.0 respectively. Users must manually upgrade.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 12:27 UTC
CWE
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake libsnowflakeclient |
Affected:
0 , < 2.9.2
(semver)
|
|
| Snowflake | Snowflake PHP PDO Driver |
Affected:
0 , < 4.1.0
(semver)
|
|
| Snowflake | Snowflake ODBC Driver |
Affected:
2.16.3 , < 3.19.0
(semver)
|
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CVE-2026-86600 (GCVE-0-2026-86600)
Vulnerability from cvelistv5 – Published: 2026-09-08 15:48 – Updated: 2026-09-08 15:48
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)
CWE
Assigner
References
8 references
Impacted products
8 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 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
3.24.0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
2.1.1 , < 3.3.0
(npm)
|
|
| 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-2026-16870 (GCVE-0-2026-16870)
Vulnerability from cvelistv5 – Published: 2026-07-24 04:40 – Updated: 2026-07-24 17:23
VLAI
EPSS
VEX
Title
Multiple Security Vulnerabilities in Snowflake libsnowflakeclient
Summary
Multiple security vulnerabilities in Snowflake libsnowflakeclient versions prior to 2.9.2 could allow remote code execution and credential exfiltration. A stack-based buffer overflow in the file download path could allow remote code execution on a victim host. An attacker could exploit this by uploading a file with a crafted encryption metadata field to a shared internal stage that a victim process later downloads, and impact would be limited to deployments where principals with different privilege levels share the same internal stage. A related out-of-bounds write in the same download path could allow memory corruption with attacker-controlled write primitives. An attacker may exploit this through a crafted initialization vector metadata field on a shared stage, and impact would be limited by the same stage-write precondition. Improper validation of connection parameters could allow an attacker-controlled input to redirect outbound authentication requests — including credentials and tokens — to an attacker-controlled endpoint. Impact is limited to embedding deployments where a lower-privileged principal can influence connection configuration while higher-privileged service credentials are in use. The fix is available in Snowflake libsnowflakeclient version 2.9.2. The Snowflake PHP PDO Driver and Snowflake ODBC Driver embed the affected library; fixes are available in versions 4.1.0 and 3.19.0 respectively. Users must manually upgrade.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 12:27 UTC
CWE
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake libsnowflakeclient |
Affected:
0 , < 2.9.2
(semver)
|
|
| Snowflake | Snowflake PHP PDO Driver |
Affected:
0 , < 4.1.0
(semver)
|
|
| Snowflake | Snowflake ODBC Driver |
Affected:
2.16.3 , < 3.19.0
(semver)
|
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