cve.bz

CVE-2024-7765

7.5 highEPSS 0.8%

High (7.5) in h2o h2o. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE
CWE-409
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-6w62-3jvj-mfj6PyPIh2o>=3.32.1.2 <=3.46.0.2no fix published
GHSA-6w62-3jvj-mfj6Mavenai.h2o:h2o-core>=3.32.1.2 <=3.46.0.2no fix published
PYSEC-2026-1439PyPIh2o>=3.32.1.2 <=3.46.0.2no fix published

References

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