{"cve":"CVE-2021-36162","nvd":{"published":"2021-09-07T10:15:07.253","modified":"2026-06-17T03:58:26.593","status":"Modified","description":"Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). These rules are loaded into the configuration center (eg: Zookeeper, Nacos, ...) and retrieved by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers will use SnakeYAML library to load the rules which by default will enable calling arbitrary constructors. An attacker with access to the configuration center he will be able to poison the rule so when retrieved by the consumers, it will get RCE on all of them. This was fixed in Dubbo 2.7.13, 3.0.2","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["https://lists.apache.org/thread.html/rfa351115a459e214b99ffcc52c35f33359f3370c547d9c6ba1a60037%40%3Cdev.dubbo.apache.org%3E","https://lists.apache.org/thread.html/rfa351115a459e214b99ffcc52c35f33359f3370c547d9c6ba1a60037%40%3Cdev.dubbo.apache.org%3E"],"products":["apache:dubbo"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-36162","score":0.02261,"percentile":0.82987,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r577-4hq7-73qh","url":"https://osv.dev/vulnerability/GHSA-r577-4hq7-73qh","summary":"Remote Code Execution in Apache Dubbo","modified":"2023-11-08T04:06:12.660289Z","packages":[{"ecosystem":"Maven","name":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","ranges":["<2.7.13"],"fixed":["2.7.13"]},{"ecosystem":"Maven","name":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","ranges":[">=3.0.0 <3.0.2"],"fixed":["3.0.2"]}]}],"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."]}