What is CVE-2024-10553?

CVE-2024-10553 is a critical-severity vulnerability in H2o, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-03-20.

How severe is CVE-2024-10553?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in H2o

CVE-2024-10553

A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitrary code via deserialization of untrusted data. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are passed to DriverManager.getConnection, leading to deserialization if a MySQL or PostgreSQL driver is available in the classpath. This issue is fixed in version 3.47.0.

Vulnerability class: Insecure Deserialization

EPSS: 0.014 (70.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

H2o — versions 3.46.0.4
H2oai H2oai/h2o-3 — versions unspecified

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security@huntr.dev (Exploit, Third Party Advisory)
security@huntr.dev (Patch)

Frequently asked questions

What is CVE-2024-10553?: CVE-2024-10553 is a critical-severity vulnerability in H2o, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-03-20.
How severe is CVE-2024-10553?: Critical severity. CVSS v3 base score is 9.8 out of 10.