Individual skill
code-review-java
Security review of Java code — dangerous sinks and Spring pitfalls. Load when reviewing a Java/ Spring codebase/PR, on .java source in scope, or "review this Java". Signals: pom.xml/build.gradle, Spring/Spring Boot, ObjectInputStream, XML parsers, Runtime.exec, JNDI/lookups.
skills/code-review/code-review-java/SKILL.md
Source commit ee0e0c50d2f6d941a14b73dd85a2b470d0ab976e
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
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- Skill scan complete
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- Observed behavior
- Not checked yet
- Last checked
- Nov 7, 2026
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Repository context
- Repository stars (not skill ratings)
- 27
- Repository last updated
- Oct 14, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- agent-skills Repository topic
- ai-agents Repository topic
- ai-security Repository topic
- application-security Repository topic
- blue-team Repository topic
- bug-bounty Repository topic
- claude-code Repository topic
- codex Repository topic
- detection-engineering Repository topic
- gemini Repository topic
- security Derived category
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# Java / Spring source review
## When it applies
Reviewing Java source, most often a Spring/Spring Boot service. Java's biggest hitters are
deserialization, XXE-by-default, and expression-language injection — all high impact and all
grep-able.
## Why it works
Several Java APIs are unsafe by default (XML parsers resolve external entities; `ObjectInputStream`
instantiates arbitrary classes) and frameworks expose powerful expression languages (SpEL/OGNL) that
turn a string into code. Tracing the source to a request parameter or message body confirms reach.
## Sinks & patterns (grep, then trace to user input)
- **Deserialization**: `ObjectInputStream.readObject`, Jackson `enableDefaultTyping`/polymorphic