| Title | HdrHistogram 2.2.2 and earlier Improper Input Validation |
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| Description | The public method recordValueWithCount(long value, long count) in AbstractHistogram does not validate that the count parameter is positive. Passing negative values corrupts the histogram's internal state, including totalCount and individual bucket values. This allows an attacker who can influence the count parameter (e.g., through a metrics API or agent data receiver) to manipulate monitoring data, suppress SLA violations, or cause incorrect alerting decisions. |
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| Source | ⚠️ https://github.com/HdrHistogram/HdrHistogram/issues/221 |
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| User | sara11h (UID 98571) |
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| Submission | 06/03/2026 09:50 (2 months ago) |
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| Moderation | 07/04/2026 06:40 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 376281 [HdrHistogram up to 2.2.2 AbstractHistogram AbstractHistogram.java recordValueWithCount state issue] |
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| Points | 20 |
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