Skip to main content
HIGH

CVE-2024-7765

CVSS v3

7.5

HIGH

EPSS Score

0.8 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for h2o.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • ai.h2o:h2o-coreMavenfrom 3.32.1.2 · no fixed version listed
  • h2oPyPIfrom 3.32.1.2 · no fixed version listed

Full record on NVD

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.

Technical details

Published
2025-03-20

Frequently asked questions

What is CVE-2024-7765?

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.

Is CVE-2024-7765 actively exploited?

Active exploitation of CVE-2024-7765 has not been confirmed. Its EPSS score was 0.8% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-7765?

CVE-2024-7765 has a CVSS v3 base score of 7.5 (HIGH severity).

Running h2o? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month