Memory Allocation with Excessive Size Value Affecting h2o/h2o package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Jul 2026
- disclosed17 Jul 2026
- creditElhananHaenel
Introduced: 17 Jul 2026
CVE-2026-44453 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value when serving static files via the alloca function. An attacker can cause the server to crash by requesting static files that result in excessive stack memory allocation, leading to a segmentation fault.