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CVE-2026-65321 - PyAthena 3.35.4 SQL Injection via DefaultParameterFormatter DELETE/CTAS

CVE ID :CVE-2026-65321
Published : Aug. 2, 2026, 3:16 p.m. | 1 hour, 37 minutes ago
Description :PyAthena prior to 3.35.4 contains a sql injection vulnerability that allows unauthenticated attackers to inject arbitrary SQL by exploiting improper quote-escaping in DefaultParameterFormatter.format(), which routes DELETE and CTAS statements to the _escape_hive function that backslash-escapes single quotes rather than doubling them. Because Athena and Trino do not treat backslashes as escape characters inside string literals, attacker-supplied input such as a single quote followed by SQL syntax causes the parser to terminate the string literal prematurely, enabling data exfiltration via UNION SELECT, execution of destructive statements, and attacker-controlled CTAS destination and content.
Severity: 9.8 | CRITICAL
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