CVE-2026-14686 HdrHistogram CVE debrief

Who should care

Users of HdrHistogram up to version 2.2.2, operators, platform administrators, vulnerability management teams, and security teams should be aware of this vulnerability. They should verify their inventory, assess exposure, and consider compensating controls due to the local access requirement and disputed status.

Technical summary

The CVE-2026-14686 vulnerability affects HdrHistogram's DoubleHistogram.recordValue function in the Range Check component, leading to incorrect comparisons. Local access is required for exploitation. The attack vector is limited, with a CVSS score of 1.9 and a LOW severity rating. This issue is disputed due to potential lack of security boundary crossing and prerequisites for a successful attack. Users of HdrHistogram up to version 2.2.2 should verify their inventory, assess exposure, and consider compensating controls. Evidence is limited, and defenders should verify the presence of affected products and assess local access risks.

Defensive priority

Low priority due to local access requirement and disputed status. Verify inventory, assess exposure, and consider compensating controls. Track vendor remediation status and review relevant monitoring, detection, and logs for exposed assets that need extra review. Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. 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. Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Consider asset inventory, rollback/change windows, and source tracking as part of the defensive strategy. Ensure that compensating controls are in place for exposed systems while remediation is scheduled and verified. The priority posture for this vulnerability is low due to the local access requirement and disputed status, but affected parties should still take necessary precautions to verify their inventory and assess their exposure. The CVE details indicate a local access requirement for exploitation and a dispute regarding security boundary crossing and prerequisites for a successful attack. Users should verify their inventory, assess exposure, and consider compensating controls. Evidence is limited, and defenders should verify the presence of affected products and assess local access risks. The NVD entry is currently Deferred. The presence and impact of this vulnerability are uncertain. The CVE record was published on 2026-07-05T01:21:57.560Z and was last modified on 2026-07-16T08:16:17.817Z. The CVE details indicate a local access requirement for exploitation and a dispute regarding security boundary crossing and prerequisites for a successful attack. Users should verify their inventory, assess exposure, and consider compensating controls. Evidence is limited, and defenders should verify the presence

Recommended defensive actions

• Verify HdrHistogram version and inventory
• Assess exposure and local access risks
• Consider compensating controls and monitoring
• Review and track vendor remediation status
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record was published on 2026-07-05T01:21:57.560Z and was last modified on 2026-07-16T08:16:17.817Z. The NVD entry is currently Deferred. The presence and impact of this vulnerability are uncertain. The CVE details indicate a local access requirement for exploitation and a dispute regarding security boundary crossing and prerequisites for a successful attack. Users should verify their inventory, assess exposure, and consider compensating controls. Evidence is limited, and defenders should verify the presence of affected products and assess local access risks.

Official resources