Collected research

SpEL Casting and Evil Beans

CVE-2022-22947: SpEL Casting and Evil Beans

Unsafe Spring Expression Language evaluation in the Spring Cloud Gateway actuator: a route filter argument wrapped in a SpEL block is parsed with StandardEvaluationContext, so adding a route and refreshing it runs arbitrary Java. After the patch, argument-free bean methods still leak internal state and can shut the server down.

Record

Document

CVE-2022-22947: SpEL Casting and Evil Beans

Published by

wya.pl

Format

Advisory

Topic

Other

In the archive

• Collected in the 2022 research round

Related sources

• Demonstration application

Tags

• ssti
• rce
• injection
• dos
• info-leak
• java
• spring
• cve
• static-analysis
• vendor-advisory
• owasp-a03-2021

This page is the archive's own catalogue record. The research is the work of wya.pl, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on 9 August 2026.