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CVE-2023-20861

Spring Framework vulnerable to denial of service via specially crafted SpEL expression

In Spring Framework versions 6.0.0 - 6.0.6, 5.3.0 - 5.3.25, 5.2.0.RELEASE - 5.2.22.RELEASE, and older unsupported versions, it is possible for a user to provide a specially crafted SpEL expression that may cause a denial-of-service (DoS) condition.

Patch Available

Fix available through Seal Security. No upgrade required, protect your application instantly.

Fix without upgrading
Vulnerability Details
Score
6.4
Score Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Versions
org.springframework:spring-expression >= 6.0.0 < 6.0.7; org.springframework:spring-expression >= 5.3.0 < 5.3.26; org.springframework:spring-expression < 5.2.23.RELEASE
Severity
Medium
Ecosystem
Publish Date
March 23, 2023
Modified Date
February 25, 2025