Affects widely-used AWS Athena ODBC driver; credential theft via MITM on external IdP connections.
CVE-2026-35560
MITM risk in Athena ODBC via external IdP connections.
Is CVE-2026-35560 being exploited?
Not confirmed. CVE-2026-35560 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 0.26% probability of exploitation in the next 30 days.
How severe is CVE-2026-35560?
CVE-2026-35560 is rated Critical with a CVSS score of 9.1. 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-2026-35560?
Yes. A fix has been recorded for CVE-2026-35560. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-35560 affect?
CVE-2026-35560 affects Amazon Athena ODBC driver <= 2.0.0.0, External identity provider connections via Athena ODBC. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-35560?
Upgrade to 2.1.0.0
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Credential interception via improper cert validation during external IdP auth; attacker could steal login tokens.
Immediate action required