9.1

CVE-2024-45758: h2o Deserialization of Untrusted Data

Analyzed
AliasesGHSA-hrmc-jmp7-mpm2PYSEC-2026-352
Published 06-09-2024Last modified 06-09-2024

Vulnerability summary

CVE-2024-45758 is a critical (CVSS 9.1) Deserialization of Untrusted Data vulnerability in h2o. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.91%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Timeline

  1. 06-09-2024
    PublishedVulnerability first disclosed.
  2. 06-09-2024
    Last modifiedVulnerability information updated.

Description

H2O.ai H2O through 3.46.0.4 allows attackers to arbitrarily set the JDBC URL, leading to deserialization attacks, file reads, and command execution. Exploitation can occur when an attacker has access to post to the ImportSQLTable URI with a JSON document containing a connection_url property with any typical JDBC Connection URL attack payload such as one that uses queryInterceptors.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.91%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.91% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (spear-shield.notion.site)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ai.h2o1 product
  • h2o-core≤ 3.46.0.7
H2o1 product
  • h2o≤ 3.46.0.4
PyPI1 product
  • h2o≤ 3.46.0.7

3 vendors · 3 products

References

11 links
Show all 11 references