CVE-2026-59276
Published:August 27, 2026
Updated:September 24, 2026
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 Packages
https://github.com/spring-projects/spring-security.git (GITHUB):
Affected version(s) >=7.0.0 <7.0.7Fix Suggestion:
Update to version 7.0.7https://github.com/spring-projects/spring-security.git (GITHUB):
Affected version(s) =7.1.0 <7.1.1Fix Suggestion:
Update to version 7.1.1org.springframework.security:spring-security-core (JAVA):
Affected version(s) >=7.0.0 <7.0.7Fix Suggestion:
Update to version 7.0.7org.springframework.security:spring-security-core (JAVA):
Affected version(s) =7.1.0 <7.1.1Fix Suggestion:
Update to version 7.1.1Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Observable Timing Discrepancy
EPSS
Base Score:
0.26