CVE-2026-59276

Summary

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

Affected Software

VendorProductVersion RangeStatus
SpringSpring Security7.1.0affected
SpringSpring Security7.0.0 <= 7.0.6affected
SpringSpring Security6.5.0 <= 6.5.11affected
SpringSpring Security6.4.0 <= 6.4.18affected
SpringSpring Security5.8.0 <= 5.8.27affected
SpringSpring Security5.7.0 <= 5.7.25affected

Weaknesses

  • CWE-208 Observable Timing Discrepancy

References