{"answers":{"affected":"3 open source packages ship an affected version, including org.apache.skywalking:oap-server and apache-skywalking. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-13921 in the wild and no public exploit code.","fix":"Upgrade org.apache.skywalking:oap-server to 8.1.0 or later.","what":"CVE-2020-13921 is a critical SQL injection vulnerability in Apache SkyWalking, published on 5 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-13921 and fix it if it is affected.\n\nWhat it is: CVE-2020-13921 is a critical SQL injection vulnerability in Apache SkyWalking, published on 5 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-13921 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.skywalking:oap-server (Maven): affected all versions; fixed in 8.1.0\n- org.apache.skywalking:oap-server (Maven): affected all versions; fixed in 8.1.0\n- apache-skywalking (PyPI): affected all versions; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-13921/ (Markdown: https://insights.sbomify.com/CVE-2020-13921/index.md)","id":"CVE-2020-13921","markdown":"https://insights.sbomify.com/CVE-2020-13921/index.md","name":"CVE-2020-13921","record":{"aliases":["GHSA-grpf-gg7v-5g5h","PYSEC-2020-342"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"APM monitoring tool","requires_auth":"none","summary":"SQL injection in Apache SkyWalking allows attackers to manipulate database queries when using specific storage backends.","user_interaction":"not_required","vuln_class":"sql_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"skywalking","vendor":"apache"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-89","name":"Improper Neutralization of Special Elements used in an SQL Command"}],"description":"**Resolved** Only when using H2/MySQL/TiDB as Apache SkyWalking storage, there is a SQL injection vulnerability in the wildcard query cases.","ecosystems":["Maven","PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"SQL Injection in Apache SkyWalking","id":"CVE-2020-13921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"sql_injection","year":"2020"},"n_packages":3,"n_references":3,"next":{"headline":"Apache DolphinScheduler (incubating) Permission vulnerability","id":"CVE-2020-13922"},"packages":[{"ecosystem":"Maven","fixed":["8.1.0"],"introduced":["0"],"last_affected":[],"package":"org.apache.skywalking:oap-server","purl":null,"source":"GHSA-grpf-gg7v-5g5h"},{"ecosystem":"Maven","fixed":["8.1.0"],"introduced":["0"],"last_affected":[],"package":"org.apache.skywalking:oap-server","purl":"pkg:maven/org.apache.skywalking/oap-server","source":"GHSA-grpf-gg7v-5g5h"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":[],"package":"apache-skywalking","purl":"pkg:pypi/apache-skywalking","source":"PYSEC-2020-342"}],"prev":{"headline":"Improper Authentication in Apache ActiveMQ","id":"CVE-2020-13920"},"products":["Apache SkyWalking"],"published":"2020-08-05","related":[{"cvss_score":7.5,"headline":"SkyWalking OAP /debugging/config/dump endpoint may leak sensitive configuration information","id":"CVE-2026-30778","kev_date_added":null,"published":"2026-04-15"},{"cvss_score":7.5,"headline":"SQL injection in Apache SkyWalking","id":"CVE-2020-9483","kev_date_added":null,"published":"2020-06-30"},{"cvss_score":6.1,"headline":"Apache SkyWalking: Stored XSS vulnerability","id":"CVE-2025-54057","kev_date_added":null,"published":"2025-11-27"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"SQL injection in Apache SkyWalking allows attackers to manipulate database queries when using specific storage backends.","url":"https://insights.sbomify.com/CVE-2020-13921/"}