CVE-2020-17532

Apache ServiceComb Yaml remote deserialization vulnerability

8.8 HighFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

3.38%Up 0.2 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Record: CVE-2020-17532
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.0 MediumAV:N/AC:M/Au:S/C:P/I:P/A:P
Weakness: CWE-20, CWE-502
Updated: 2026-11-02

CVE List No score

Apache ServiceComb Yaml remote deserialization vulnerability

Record: CVE-2020-17532
Weakness: CWE-20
Updated: 2026-11-02

EUVDEUVD-2022-1140 0.0

Record: EUVD-2022-1140
CVSS: 0.0 NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-px4w-rcv2-6x8x 8.8

Arbitrary code execution in Apache ServiceComb java-chassis

Record: GHSA-px4w-rcv2-6x8x
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

OSV 8.8

Record: CVE-2020-17532
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVGHSA-px4w-rcv2-6x8x 8.8

Arbitrary code execution in Apache ServiceComb java-chassis

Record: GHSA-px4w-rcv2-6x8x
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.servicecomb:java-chassis` Maven	1.0.0 up to 1.3.2	1.3.2
`org.apache.servicecomb:java-chassis` Maven	2.0.0 up to 2.1.5	2.1.5
`org.apache.servicecomb:java-chassis` Maven	1.0.0 up to 1.3.2, plus listed versions 1.1.01.2.01.2.11.3.01.3.1	1.3.2
`org.apache.servicecomb:java-chassis` Maven	2.0.0 up to 2.1.5, plus listed versions 2.0.12.0.22.1.02.1.12.1.22.1.3	2.1.5

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-17532 is a high vulnerability (CVSS 8.8) in Apache Software Foundation Servicecomb-java-chassis, published January 25, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.38%, the 88th percentile. Fixed in org.apache.servicecomb:java-chassis 1.3.2.