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CVE-2025-6507

Deserialization of Untrusted Data in h2oai/h2o-3

Published: Sep 1, 2025Updated: Sep 2, 2025 Sources: CVE List NVD BDUCWE-502
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
13.0%
Top 4.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A vulnerability in the h2oai/h2o-3 repository allows attackers to exploit deserialization of untrusted data, potentially leading to arbitrary code execution and reading of system files. This issue affects the latest master branch version 3.47.0.99999. The vulnerability arises from the ability to bypass regular expression filters intended to prevent malicious parameter injection in JDBC connections. Attackers can manipulate spaces between parameters to evade detection, allowing for unauthorized file access and code execution. The vulnerability is addressed in version 3.46.0.8.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

H2OH2O.ai, Inc.
Mixed
AI / ML / ml-framework
h2oai/h2o-3h2oai
Mixed
AI / ML / ml-framework
h2o.ai, inc.commercialUSAI / ML
h2oaicommercialAI / ML

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://huntr.com/bounties/0a9d527a-2d39-4bc0-bf01-1e717587f077
huntr.com
https://github.com/h2oai/h2o-3/commit/f714edd6b8429c7a7211b779b6ec108a95b7382d
github.com
https://huntr.com/bounties/0a9d527a-2d39-4bc0-bf01-1e717587f077
huntr.com

Timeline

Published
Sep 1, 2025
Last Updated
Sep 2, 2025

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