Vulnerability-Lookup

CVE-2026-16870 (GCVE-0-2026-16870)

Vulnerability from cvelistv5 – Published: 2026-07-24 04:40 – Updated: 2026-07-24 17:23

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)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-24 12:27 UTC

CWE

CWE-121 - Stack-based Buffer Overflow
CWE-787 - Out-of-bounds Write
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

SNOWFLAKE CNA

CNA scorecard C 65/100 over 21 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/snowflakedb/libsnowflakeclient…

Impacted products

3 products

Vendor	Product	Version	CPE status
Snowflake	Snowflake libsnowflakeclient	Affected: 0 , < 2.9.2 (semver)	guessed
Snowflake	Snowflake PHP PDO Driver	Affected: 0 , < 4.1.0 (semver)	guessed
Snowflake	Snowflake ODBC Driver	Affected: 2.16.3 , < 3.19.0 (semver)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-16870

Vulnerability from fkie_nvd - Published: 2026-07-24 06:16 - Updated: 2026-07-30 19:07

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	412d305a-227d-44f9-a262-a31ba44f2aea	https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.9.2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-F55H-4J35-8285

Vulnerability from github – Published: 2026-07-24 06:34 – Updated: 2026-07-24 18:31

Details

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

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  "affected": [],
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  ],
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  "details": "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 \u2014 including credentials and tokens \u2014 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. Users must manually upgrade.",
  "id": "GHSA-f55h-4j35-8285",
  "modified": "2026-07-24T18:31:25Z",
  "published": "2026-07-24T06:34:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16870"
    },
    {
      "type": "WEB",
      "url": "https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.9.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

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Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-16870 (GCVE-0-2026-16870)

FKIE_CVE-2026-16870

GHSA-F55H-4J35-8285

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