CVE-2024-6863
Medium
Description
In h2oai/h2o-3 version 3.46.0, an endpoint exposing a custom EncryptionTool allows an attacker to encrypt any files on the target server with a key of their choosing. The chosen key can also be overwritten, resulting in ransomware-like behavior. This vulnerability makes it possible for an attacker to encrypt arbitrary files with keys of their choice, making it exceedingly difficult for the target to recover the keys needed for decryption.
SeverityMedium
CVSS6.5
Exploit probability—
Product
H2o
PublishedMar 20, 2025
First seenMar 20, 2025
Weakness typeCWE-749CWE-749
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| h2o h2o | 3.46.0 | — |
| h2oPyPI | 3.32.1.2 ≤ v ≤ 3.46.0 | — |
| ai.h2o:h2o-coreMaven | 3.32.1.2 ≤ v ≤ 3.46.0 | — |
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