CVE-2025-0782 – H2O-3 S3 Bucket Public Write Privilege Escalation Vulnerability

The following table lists the changes that have been made to the
CVE-2025-0782 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    May. 02, 2025

    Action Type Old Value New Value
    Added Description A vulnerability in the S3 bucket configuration for h2oai/h2o-3 allows public write access to the ‘h2o-release’ bucket. This issue affects all versions and could enable an attacker to overwrite any file in the bucket. As users download binary files such as JARs from this bucket, this vulnerability could lead to remote code execution (RCE) on any user who uses the application. Additionally, an attacker could modify the documentation to include malicious download links.
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
    Added CWE CWE-862
    Added Reference https://github.com/h2oai/h2o-3/commit/6740655b70cef40ec67d952bee2d23f7d33c7419
    Added Reference https://huntr.com/bounties/4587cec7-8bc5-48ab-8614-105d41c99151
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