High severityNVD Advisory· Published Mar 20, 2025· Updated Oct 15, 2025
Denial of Service by ReDOS in h2oai/h2o-3
CVE-2024-10549
Description
A vulnerability in the /3/Parse endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an attacker can exhaust all available threads, leading to a complete denial of service.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
h2oPyPI | >= 3.30.0.7, <= 3.46.0.1 | — |
ai.h2o:h2o-coreMaven | >= 3.30.0.7, <= 3.46.0.1 | — |
Affected products
3- ghsa-coords2 versions
>= 3.30.0.7, <= 3.46.0.1+ 1 more
- (no CPE)range: >= 3.30.0.7, <= 3.46.0.1
- (no CPE)range: >= 3.30.0.7, <= 3.46.0.1
Patches
Vulnerability mechanics
References
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