Resource exhaustion in Openbao
CVE-2025-59043
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…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.007 (46.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Openbao — versions < 2.4.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-59043?
- CVE-2025-59043 is a high-severity vulnerability in Openbao, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2025-10-17.
- How severe is CVE-2025-59043?
- High severity. CVSS v3 base score is 7.5 out of 10.