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Vulnerability record · CVE-2020-13921 · published 5 August 2020

CVE-2020-13921: Apache skywalking sql injection vulnerability

Apache · Skywalking

**Resolved** Only when using H2/MySQL/TiDB as Apache SkyWalking storage, there is a SQL injection vulnerability in the wildcard query cases.

9.8 CVSS 3.1 Critical EPSS 33% · top 1.7% CWE-89 · SQL injection
9.8CVSS 3.1 base score, v2 7.5
33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

**Resolved** Only when using H2/MySQL/TiDB as Apache SkyWalking storage, there is a SQL injection vulnerability in the wildcard query cases.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2020/08/05/3 Mailing ListThird Party Advisory
https://github.com/apache/skywalking/pull/4970 Third Party Advisory
https://lists.apache.org/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6%40%3Cdev.skywalking.apach
http://www.openwall.com/lists/oss-security/2020/08/05/3 Mailing ListThird Party Advisory
https://github.com/apache/skywalking/pull/4970 Third Party Advisory
https://lists.apache.org/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6%40%3Cdev.skywalking.apach

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-13921), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.