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

Quick assessment

Affected
laughingman7743 PyAthena
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

pyathena-dev PyAthena是pyathena-dev团队开源的一个用于 Amazon Athena 的 Python DB API 2.0 (PEP 249) 客户端。 pyathena-dev PyAthena 3.35.4之前版本存在SQL注入漏洞，该漏洞源于DefaultParameterFormatter.format()中引号转义不当，可能导致未认证攻击者注入任意SQL，造成数据泄露或执行破坏性语句。

CVSS 9.8 · Critical EPSS 0.77% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
laughingman7743 PyAthena ≤ 3.35.3 affected
3.35.4 unaffected
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I. Basic Information for CVE-2026-65321

Vulnerability Information
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Vulnerability Title
PyAthena SQL Injection via DefaultParameterFormatter DELETE/CTAS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
pyathena-dev PyAthena SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pyathena-dev PyAthena是pyathena-dev团队开源的一个用于 Amazon Athena 的 Python DB API 2.0 (PEP 249) 客户端。 pyathena-dev PyAthena 3.35.4之前版本存在SQL注入漏洞，该漏洞源于DefaultParameterFormatter.format()中引号转义不当，可能导致未认证攻击者注入任意SQL，造成数据泄露或执行破坏性语句。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
laughingman7743 PyAthena 0 ~ 3.35.3 -

II. Public POCs for CVE-2026-65321

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11906 chars
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III. Intelligence Information for CVE-2026-65321

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Patches & Fixes for CVE-2026-65321 (1)

Vendor Advisories for CVE-2026-65321 (2)

Proof of Concept for CVE-2026-65321 (1)

Other References for CVE-2026-65321 (1)

IV. Related Vulnerabilities

Same weakness: CWE-89

V. Comments for CVE-2026-65321

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