Vulnerability in Spring Security
CVE-2026-59270
Spring Security's embedded UnboundID LDAP server (UnboundIdContainer) unconditionally registers an administrative credential and binds its listener to all available network interfaces. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18 Spring Security 5.8.0 - 5.8.27 Spring Security 5.7.0 - 5.7.25
EPSS: 0.003 (21.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.
Affected products
- Spring Security — versions 7.1.0
References
Frequently asked questions
- What is CVE-2026-59270?
- CVE-2026-59270 is a critical-severity vulnerability in Spring Security, classified under CWE-798 USE OF HARD-CODED CREDENTIALS. CVSS score: 9.4/10. Published 2026-08-27.
- How severe is CVE-2026-59270?
- Critical severity. CVSS v3 base score is 9.4 out of 10.