{"id":"CVE-2026-65321","title":"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 state…","summary":"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 state…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-89"],"published":"2026-08-02","updated":"2026-08-02","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65321","references":[{"url":"https://github.com/laughingman7743/PyAthena","label":"disclosure@vulncheck.com"},{"url":"https://github.com/laughingman7743/PyAthena/security/advisories/GHSA-xwj5-g6cv-4r5c","label":"disclosure@vulncheck.com"},{"url":"https://github.com/pyathena-dev/PyAthena/commit/27901d12245ea722b3b4e211c60e2ade4e7c8efd","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/pyathena-sql-injection-via-defaultparameterformatter-delete-ctas","label":"disclosure@vulncheck.com"}],"tags":["nvd","exploit-available"],"ingestedAt":"2026-08-02T15:18:38.390Z","epss":0.00984,"epssPercentile":0.6031,"exploits":{"github":1,"githubRepos":["https://github.com/rahulreddykarne/CVE-2026-65321-pyathena"],"checkedAt":"2026-09-21T15:30:08.288Z"},"exploitAvailable":true,"slug":"CVE-2026-65321","body":"## Overview\n\nPyAthena 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":5404,"id":"CVE-2026-65321","ts":1788887280732,"field":"exploit_available","old":"false","new":"true"},{"seq":4287,"id":"CVE-2026-65321","ts":1788886394767,"field":"exploit_available","old":"true","new":"false"},{"seq":3036,"id":"CVE-2026-65321","ts":1788883058513,"field":"exploit_available","old":"false","new":"true"},{"seq":2065,"id":"CVE-2026-65321","ts":1788882463240,"field":"exploit_available","old":"true","new":"false"},{"seq":1138,"id":"CVE-2026-65321","ts":1788881899643,"field":"exploit_available","old":"false","new":"true"}]}