CVE-2026-59276

Several components in Spring Security compare security-sensitive values using standard string equality (String.equals()) rather than a constant-time comparison. Because String.equals() returns as soon as it finds a differing character, the time taken to reject an incorrect value is proportional to the number of leading characters that match the expected value. 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

Score

CVSS 3.1 5.9 Medium

Status

Analyzed - security@vmware.com

Published

2026-08-27

Last modified

2026-08-28

Weaknesses

CWE-208

Affected products

• Spring Security (Spring)
• Spring Security (Vmware)

References

• https://spring.io/security/cve-2026-59276