CVEvulnerability

CVE-2024-5986

9.1 CRITICAL Published 2026-02-02 Modified 2026-06-17 Official page ↗
Status
Deferred
Published
2026-02-02
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
9.1 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weaknesses
CWE-73

Description

A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the `/3/Parse` endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the `/3/Frames/framename/export` endpoint. The impact of this vulnerability includes the potential for remote code execution and complete access to the system running h2o-3, as attackers can overwrite critical files such as private SSH keys or script files.

Related

Weakness · CWE (1)

  • CWE-73 External Control of File Name or Path weakness

References