{"cve":"CVE-2026-15925","nvd":{"published":"2026-07-16T07:16:47.957","modified":"2026-10-24T21:10:00.130","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","score":9.2},"cvss_v3":null,"cwes":["CWE-297"],"references":["https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v3.18.1","https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.7.1"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-15925","score":0.00177,"percentile":0.07199,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-5cc2-282f-jjq2","url":"https://osv.dev/vulnerability/GHSA-5cc2-282f-jjq2","summary":"Snowflake Connector for Python improperly verifies TLS hostnames","modified":"2026-09-10T12:26:06.067638959Z","packages":[{"ecosystem":"PyPI","name":"snowflake-connector-python","purl":"pkg:pypi/snowflake-connector-python","ranges":["<3.18.1"],"fixed":["3.18.1"]},{"ecosystem":"PyPI","name":"snowflake-connector-python","purl":"pkg:pypi/snowflake-connector-python","ranges":[">=4.0.0 <4.7.1"],"fixed":["4.7.1"]}]},{"id":"PYSEC-2026-3920","url":"https://osv.dev/vulnerability/PYSEC-2026-3920","summary":"Snowflake Connector for Python improperly verifies TLS hostnames","modified":"2026-09-10T12:15:12.770494143Z","packages":[{"ecosystem":"PyPI","name":"snowflake-connector-python","purl":"pkg:pypi/snowflake-connector-python","ranges":["<3.18.1",">=4.0.0 <4.7.1"],"fixed":["3.18.1","4.7.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}