CVSS 3.0
7.5 highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2024-10549
High (7.5) in h2o h2o. EPSS 0.6% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-11-01)
- CWE
- CWE-1333
- Published
- Modified
- Record from
- the NVD, synced
Affected
- h2o:h2o
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-wwr9-4gmr-xvq9 | PyPI | h2o | >=3.30.0.7 <=3.46.0.1 | no fix published |
| GHSA-wwr9-4gmr-xvq9 | Maven | ai.h2o:h2o-core | >=3.30.0.7 <=3.46.0.1 | no fix published |
| PYSEC-2026-1445 | PyPI | h2o | >=3.30.0.7 <=3.46.0.1 | no fix published |