CVE-2017-20189

Published Jan 22, 2024 CVSS 3.1 · 9.8 Critical EPSS 1.3% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-jgxc-8mwq-9xqw Clojure classes can be used to craft a serialized object that runs arbitrary code on deserialization
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 3, 2025, 9:44 PM
Reserved
Jan 22, 2024, 12:00 AM
Status
Modified
Published
Jan 22, 2024, 6:15 AM
Modified
Jun 17, 2026, 1:15 AM