What’s Vulnerable › Vulnerabilities

CVE-2024-7765: Denial of Service in h2oai/h2o-3

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-03-20 · updated 2026-06-17
• Weakness: CWE-409

Description

In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.

Affected products

• h2oai/h2o-3: 3.46.0.2

References

• https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff
• https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff

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