High [CVE-2026-15925] Snowflake Connector for Python: Arbitrary SQL execution and information disclosure via improper TLS hostname verification
This high-severity Red Hat Linux advisory covers CVE-2026-15925 affecting Red Hat OpenShift AI (RHOAI).
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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.
Users must manually upgrade. A network-positioned attacker could exploit improper Transport Layer Security (TLS) hostname verification by intercepting network traffic and presenting a fraudulent certificate.
Red Hat severity: Important — CVSS 7.4 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N). Weakness: CWE-295.
Affected Red Hat products: Red Hat OpenShift AI (RHOAI).
- < 4.7.1
- < 3.18.1
Official advisory · high-confidence parse· fetched 20 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 4.7.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 20 hours ago·verify at source
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