commerce cybersource vulnerabilities and fixes

Recent CVEs affecting commerce cybersource, with upgrade or downgrade steps. 1 tracked.

Also searched as: commercecybersource.

commerce cybersource has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-09-02. Highest priority: CVE-2026-81159 (score 22/100).

• CVE-2026-81159 LOW 3.7 UPGRADE Observable Timing Discrepancy vulnerability in Drupal Commerce CyberSource allows Brute Force

FAQ

How do I fix commerce cybersource vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is commerce cybersource being exploited right now?

None of the tracked commerce cybersource CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which commerce cybersource CVE should I patch first?

CVE-2026-81159 currently ranks highest (22/100): Observable Timing Discrepancy vulnerability in Drupal Commerce CyberSource allows Brute Force.

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