CVE-2026-15925

Source
https://cve.org/CVERecord?id=CVE-2026-15925
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15925.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-15925
Published
2026-07-16T05:31:35.515Z
Modified
2026-08-07T11:50:33.425318951Z
Severity
  • 9.2 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
Improper TLS Hostname Verification in Snowflake Connector for Python
Details

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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15925.json",
    "cna_assigner": "SNOWFLAKE",
    "cwe_ids": [
        "CWE-297"
    ]
}
References

Affected packages

Git / github.com/snowflakedb/snowflake-connector-python

Affected ranges

Type
GIT
Repo
https://github.com/snowflakedb/snowflake-connector-python
Events
Database specific
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.17.4"
        },
        {
            "fixed": "3.18.1"
        },
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.7.1"
        }
    ]
}

Affected versions

v3.*
v3.17.4
v3.18.0
v4.*
v4.0.0
v4.1.0
v4.1.1
v4.2.0
v4.3.0
v4.4.0
v4.5.0
v4.6.0
v4.7.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15925.json"