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CVE-2026-35561: Insufficient authentication security controls in the browser-based authentication components in Amazon Athena

47
This month
HIGH 7.4REMOTEWATCHLISTUPGRADE

CVE-2026-35561 is a high-severity flaw (CVSS 7.4) affecting athena odbc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insufficient authentication security controls in the browser-based authentication components in Amazon Athena ODBC driver before 2.1.0.0 might allow a threat actor to intercept or hijack authentication sessions due to insufficient protections in the browser-based authentication flows. To remediate this issue, users should upgrade to version 2.1.0.0.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score7.4 (High)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.5% (top 57%)
CISA exploited listNo
WeaknessCWE-862
Published2026-04-03
Last modified2026-10-20
Publisher (CNA): AMZN · Vendor: amazon

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Last updated 2026-10-20 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

amazon athena odbc UPGRADE
Affected: < 2.1.0.0
Fixed in: 2.1.0.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy athena-odbc || rpm -q athena-odbc || athena-odbc --version
2. UPGRADE to 2.1.0.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade athena-odbc
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade athena-odbc
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35561?

athena odbc: upgrade to 2.1.0.0. Exact commands for each OS are on this page.

Is CVE-2026-35561 being exploited?

CVE-2026-35561 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35561 affect?

CVE-2026-35561 affects athena odbc. Severity is high (CVSS 7.4). Insufficient authentication security controls in the browser-based authentication components in Amazon Athena ODBC driver before 2.1.0.0 might allow a threat actor to intercept or hijack authentication sessions due to insufficient protectio

How urgent is CVE-2026-35561?

Priority 47/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

References

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