CVE-2026-65321
PyAthena SQL injection allows data exfiltration and destructive queries.
Is CVE-2026-65321 being exploited?
Not confirmed. CVE-2026-65321 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.98% probability of exploitation in the next 30 days.
How severe is CVE-2026-65321?
CVE-2026-65321 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-65321?
Yes. A fix has been recorded for CVE-2026-65321. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-65321 affect?
CVE-2026-65321 affects PyAthena < 3.35.4, Amazon Athena (via PyAthena), Trino (via PyAthena), Applications using PyAthena to run SQL. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65321?
Upgrade PyAthena to >=3.35.4 and sanitize/validate all query parameters.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated SQL injection via improper quote-escaping in PyAthena, enabling UNION SELECT data exfiltration, destructive DELETE, and attacker-controlled CTAS.
Immediate action required
- affected<= 3.35.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.