CVE-2023-20862

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-19 · updated 2026-06-17
Weakness: CWE-459

Description

In Spring Security, versions 5.7.x prior to 5.7.8, versions 5.8.x prior to 5.8.3, and versions 6.0.x prior to 6.0.3, the logout support does not properly clean the security context if using serialized versions. Additionally, it is not possible to explicitly save an empty security context to the HttpSessionSecurityContextRepository. This vulnerability can keep users authenticated even after they performed logout. Users of affected versions should apply the following mitigation. 5.7.x users should upgrade to 5.7.8. 5.8.x users should upgrade to 5.8.3. 6.0.x users should upgrade to 6.0.3.

Affected products

Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
Spring Security: from 5.7.0 before 5.7.8; from 5.8.0 before 5.8.3; from 6.0.0 before 6.0.3 — fixed in 5.7.8, 5.8.3, 6.0.3
Spring Security: from Spring Security, versions 5.7.x prior through 5.7.8, versions 5.8.x prior to 5.8.3, and versions 6.0.x prior to 6.0.3

How to fix

Upgrade to a fixed version: Spring Security 5.7.8, 5.8.3, 6.0.3. Check the vendor advisory for mitigations.

References

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