CVE-2020-17532: Apache ServiceComb Yaml remote deserialization vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-25 · updated 2026-06-17
Weakness: CWE-20

Description

When handler-router component is enabled in servicecomb-java-chassis, authenticated user may inject some data and cause arbitrary code execution. The problem happens in versions between 2.0.0 ~ 2.1.3 and fixed in Apache ServiceComb-Java-Chassis 2.1.5

Affected products

Apache Software Foundation Apache ServiceComb-Java-Chassis: from 2.0.0 before 2.1.5 — fixed in 2.1.5

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache ServiceComb-Java-Chassis 2.1.5. Check the vendor advisory for mitigations.

References

https://issues.apache.org/jira/browse/SCB-2145
https://seclists.org/oss-sec/2021/q1/60
https://issues.apache.org/jira/browse/SCB-2145
https://seclists.org/oss-sec/2021/q1/60

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