Quick answers
- Is CVE-2026-14686 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-14686 being exploited in the wild.
- How severe is CVE-2026-14686?
- Low severity, with a CVSS score of 3.3, published 5 July 2026.
- Which products and versions are affected?
- HdrHistogram up to 2.2.2.
- Is there a fix for CVE-2026-14686?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-14686 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-14686?
- Check whether you run HdrHistogram at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An incorrect comparison vulnerability (CWE-697) exists in HdrHistogram versions up to 2.2.2 within the `org.HdrHistogram.DoubleHistogram.recordValue` function in `DoubleHistogram.java`. The vulnerability stems from a failure to properly validate 'NaN' (Not-a-Number) values during range checks. An attacker with local access or the ability to influence recorded values can bypass these checks, resulting in silent data corruption within the histogram. While an issue report was submitted to the maintainers, no official patch has been released at the time of disclosure.
Affected products
- HdrHistogram HdrHistogram up to 2.2.2
Timeline
- 2026-07-05: disclosed: Public disclosure of the vulnerability and CVE assignment.
- 2026-07-05: advisory: NVD publication date.