Collected research
Fastjson: exceptional deserialization vulnerabilities
Fastjson guards its autoType deny list by hash in nine separate places, yet exception classes are still instantiated when autoType is off. A nested @type paired with a $ref reference reaches getters on that exception and leaks system information or stack traces, and a shared global config means one developer enabling autoType creates RCE elsewhere.
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- Researcher
- Peter Stöckli
- Published by
- alphabot.com
- Topic
- Other
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This page is the archive's own catalogue record. The research is the work of Peter Stöckli, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on .