CVE-2017-20189
CRITICAL 9.8EPSS 1.3%
In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upon deserialization. This is relevant if a server deserializes untrusted objects.
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 1.33% chance of exploitation in the next 30 days, 71st percentile
- Published
- 2024-01-22
- Updated
- 2025-11-03
Proof-of-concept exploits (1)
Security advisories
- https://hackmd.io/%40fe1w0/HyefvRQKp
- https://security.snyk.io/vuln/SNYK-JAVA-ORGCLOJURE-5740378
- advisories/GHSA-jgxc-8mwq-9xqw
- clojure/clojure/commit/271674c9b484d798484d134a5ac40a6df15d3ac3
- frohoff/ysoserial/pull/68/files