Description
OpenBao is an open source identity-based secrets management system. In OpenBao versions prior to 2.4.1, JSON objects after decoding may use significantly more memory than their serialized version. It is possible to craft a JSON payload to maximize the factor between serialized memory usage and deserialized memory usage, similar to a zip bomb, with factors reaching approximately 35. This can be used to circumvent the max_request_size configuration parameter which is intended to protect against denial of service attacks. The request body is parsed into a map very early in the request handling chain before authentication, which means an unauthenticated attacker can send a specifically crafted JSON object and cause an out-of-memory crash. Additionally, for requests with large numbers of strings, the audit subsystem can consume large quantities of CPU. The vulnerability is fixed in version 2.4.1.
INFO
Published Date :
2025-10-17T16:03:23.584Z
Last Modified :
2025-10-17T17:22:52.795Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-59043 vulnerability.
| Vendors | Products |
|---|---|
| Openbao |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-59043.
