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PatchSiren cyber security CVE debrief

CVE-2026-65325 Apache CVE debrief

Apache Traffic Server reuses multiplexed HTTP/2 origin connections without verifying the server certificate covers the new request hostname. This issue affects Apache Traffic Server: from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue. The vulnerability allows for potential security risks if not addressed. It is crucial to verify the server certificate to prevent security breaches and review compensating controls for exposed systems. Defenders should monitor for potential security issues and track exceptions, retesting remediated assets to confirm whether affected product deployments exist in managed environments.

Vendor
Apache
Product
Traffic Server
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-29
Original CVE updated
2026-08-03
Advisory published
2026-07-29
Advisory updated
2026-08-03

Who should care

Users of Apache Traffic Server versions 9.0.0 through 9.2.14, 10.0.0 through 10.1.3 should be aware of this vulnerability and take necessary actions to secure their systems. This includes upgrading to the latest version and verifying server certificates. Security teams and operators managing these systems should prioritize this update to prevent potential security risks.

Technical summary

Apache Traffic Server reuses multiplexed HTTP/2 origin connections without verifying the server certificate covers the new request hostname. This issue affects Apache Traffic Server: from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. The vulnerability allows for potential security risks if not addressed. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue. It is crucial to verify the server certificate to prevent security breaches.

Defensive priority

Upgrade to version 9.2.15 or 10.1.4 to fix the issue.

Recommended defensive actions

  • Upgrade to version 9.2.15 or 10.1.4
  • Verify server certificate covers the new request hostname
  • Monitor for potential security issues
  • Review compensating controls for exposed systems
  • Check relevant monitoring, detection, and logs for exposed assets
  • Track exceptions and retest remediated assets
  • Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record was published on 2026-07-29T09:16:30.543Z and has not been modified since then. The NVD entry is currently Analyzed. There is limited information available about the specific impact of this vulnerability on affected systems. Users should verify the server certificate covers the new request hostname to ensure security. Defenders should review the official advisory for further details and monitor for potential security issues.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-29T09:16:30.543Z and has not been modified since then.