CVE-2025-66214 HIGH

CVE-2025-66214: Ladybug has an XMLDecoder Deserialization Vulnerability (Java RCE)

Vendor Wearefrank
Product ladybug
Weakness CWE-502 · Unsafe deserialization
Published December 9, 2025
Last update December 9, 2025

CVSS base score

7.0/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L

What the vulnerability does

Description

Ladybug adds message-based debugging, unit, system, and regression testing to Java applications. Versions prior to 3.0-20251107.114628 contain the APIs /iaf/ladybug/api/report/{storage} and /iaf/ladybug/api/report/upload, which allow uploading gzip-compressed XML files with user-controllable content. The system deserializes these XML files, enabling attackers to achieve Remote Code Execution (RCE) by submitting carefully crafted XML payloads and thereby gain access to the target server. This issue is fixed in version 3.0-20251107.114628.

Key dates

Disclosure timeline

December 9, 2025 CVE published
December 9, 2025 Record updated