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PatchSiren cyber security CVE debrief

CVE-2026-35558 Amazon CVE debrief

The Amazon Athena ODBC driver before version 2.1.0.0 has a vulnerability that might allow a threat actor to execute arbitrary code or redirect authentication flows by using specially crafted connection parameters. This issue arises from improper neutralization of special elements in the driver's authentication components. Users should upgrade to version 2.1.0.0 to remediate this issue. The vulnerability has a high CVSS score of 7.3, indicating a high severity level. Affected users should be aware of the potential risks and take steps to upgrade and monitor their systems.

Vendor
Amazon
Product
Amazon Athena ODBC driver
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-03
Original CVE updated
2026-07-24
Advisory published
2026-04-03
Advisory updated
2026-07-24

Who should care

Users of Amazon Athena ODBC driver versions prior to 2.1.0.0 should be aware of this vulnerability and take steps to upgrade. This includes administrators and security teams responsible for managing and securing their organization's systems and data. The vulnerability has a high CVSS score, indicating a high severity level, and users should prioritize remediation efforts.

Technical summary

The Amazon Athena ODBC driver before version 2.1.0.0 has an improper neutralization of special elements in its authentication components. This could allow a threat actor to execute arbitrary code or redirect authentication flows by using specially crafted connection parameters during user-initiated authentication. The vulnerability is related to the driver's handling of authentication requests and connection parameters. Users should review their current version and upgrade to version 2.1.0.0 to prevent potential exploitation.

Defensive priority

High priority due to potential for arbitrary code execution and authentication flow redirection.

Recommended defensive actions

  • Upgrade to version 2.1.0.0 of the Amazon Athena ODBC driver
  • Review and restrict connection parameters to prevent specially crafted input
  • Monitor for suspicious activity related to authentication flows
  • Verify current version and upgrade if necessary
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

Evidence is based on the CVE record and NVD details. Limited information is available on the exact scope of affected systems and potential exploits. The Amazon Athena ODBC driver before version 2.1.0.0 has an improper neutralization of special elements in its authentication components. Users should verify their current version and upgrade if necessary. Defenders should review connection parameters and monitor for suspicious activity related to authentication flows.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-35558 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-35558

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-35558 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-35558

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://aws.amazon.com/security/security-bulletins/2026-013-aws/

    ff89ba41-3aa1-4d27-914a-91399e9639e5 - Vendor Advisory

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://docs.aws.amazon.com/athena/latest/ug/odbc-v2-driver-release-notes.html

    ff89ba41-3aa1-4d27-914a-91399e9639e5 - Release Notes

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Linux/AmazonAthenaODBC-2.1.0.0.rpm

    ff89ba41-3aa1-4d27-914a-91399e9639e5 - Patch, Product

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Mac/Intel/AmazonAthenaODBC-2.1.0.0_x86.pkg

    ff89ba41-3aa1-4d27-914a-91399e9639e5 - Patch, Product

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Mac/arm/AmazonAthenaODBC-2.1.0.0_arm.pkg

    ff89ba41-3aa1-4d27-914a-91399e9639e5 - Patch, Product

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://downloads.athena.us-east-1.amazonaws.com/drivers/ODBC/v2.1.0.0/Windows/AmazonAthenaODBC-2.1.0.0.msi

    ff89ba41-3aa1-4d27-914a-91399e9639e5 - Patch, Product

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.