Is CVE-2023-20862 actively exploited?

No active exploitation of CVE-2023-20862 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-20862 be exploited remotely?

Yes. CVE-2023-20862 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-20862?

CVE-2023-20862 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2023-20862

CWE-459Published: April 19, 2023· Updated: Jun 17, 2026

6.3

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2023-20862 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.