CVE-2026-35559: Out-of-bounds write in query processing components in Amazon Athena ODBC driver

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-03 · updated 2026-10-20
Weakness: CWE-787

Description

Out-of-bounds write in the query processing components in Amazon Athena ODBC driver before 2.1.0.0 might allow a threat actor to crash the driver by using specially crafted data that is processed by the driver during query operations. To remediate this issue, users should upgrade to version 2.1.0.0.

Affected products

Amazon Athena ODBC driver: before 2.1.0.0 — fixed in 2.1.0.0

How to fix

Upgrade to a fixed version: Amazon Athena ODBC driver 2.1.0.0. Check the vendor advisory for mitigations.

References

https://aws.amazon.com/security/security-bulletins/2026-013-aws/
https://docs.aws.amazon.com/athena/latest/ug/odbc-v2-driver-release-notes.html
https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Linux/AmazonAthenaODBC-2.1.0.0.rpm
https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Mac/Intel/AmazonAthenaODBC-2.1.0.0_x86.pkg
https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Mac/arm/AmazonAthenaODBC-2.1.0.0_arm.pkg
https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Windows/AmazonAthenaODBC-2.1.0.0.msi

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