{"cve":"CVE-2020-13921","nvd":{"published":"2020-08-05T14:15:12.327","modified":"2026-06-17T02:53:54.080","status":"Modified","description":"**Resolved** Only when using H2/MySQL/TiDB as Apache SkyWalking storage, there is a SQL injection vulnerability in the wildcard query cases.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-89"],"references":["http://www.openwall.com/lists/oss-security/2020/08/05/3","https://github.com/apache/skywalking/pull/4970","https://lists.apache.org/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6%40%3Cdev.skywalking.apache.org%3E","http://www.openwall.com/lists/oss-security/2020/08/05/3","https://github.com/apache/skywalking/pull/4970"],"products":["apache:skywalking"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-13921","score":0.33478,"percentile":0.98379,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-grpf-gg7v-5g5h","url":"https://osv.dev/vulnerability/GHSA-grpf-gg7v-5g5h","summary":"SQL Injection in Apache SkyWalking","modified":"2024-02-16T08:14:51.095451Z","packages":[{"ecosystem":"Maven","name":"org.apache.skywalking:oap-server","purl":"pkg:maven/org.apache.skywalking/oap-server","ranges":["<8.1.0"],"fixed":["8.1.0"]}]},{"id":"PYSEC-2020-342","url":"https://osv.dev/vulnerability/PYSEC-2020-342","summary":"","modified":"2025-10-09T07:22:35.696034Z","packages":[{"ecosystem":"PyPI","name":"apache-skywalking","purl":"pkg:pypi/apache-skywalking","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}