CVE-2026-65321

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/laughingman7743/PyAthena
https://github.com/laughingman7743/PyAthena/security/advisories/GHSA-xwj5-g6cv-4r5c
https://github.com/pyathena-dev/PyAthena/commit/27901d12245ea722b3b4e211c60e2ade4e7c8efd
https://github.com/rahulreddykarne/CVE-2026-65321-pyathena
https://rahulkarne.com/#/cve/CVE-2026-65321
https://www.vulncheck.com/advisories/pyathena-sql-injection-via-defaultparameterformatter-delete-ctas

Configurations

No configuration.

History

06 Aug 2026, 22:18

Type	Values Removed	Values Added
References		() https://github.com/rahulreddykarne/CVE-2026-65321-pyathena - () https://rahulkarne.com/#/cve/CVE-2026-65321 -

02 Aug 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-08-02 15:16

Updated : 2026-08-06 22:18

NVD link : CVE-2026-65321

Mitre link : CVE-2026-65321

CVE.ORG link : CVE-2026-65321

JSON object : View

Products Affected

No product.

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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