{"answers":{"affected":"2 open source packages ship an affected version, including org.apache.dubbo:dubbo. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-30180 in the wild and no public exploit code.","fix":"Upgrade org.apache.dubbo:dubbo to 2.7.10 or later.","what":"CVE-2021-30180 is a critical unsafe deserialization vulnerability in Apache Dubbo, published on 31 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-30180 and fix it if it is affected.\n\nWhat it is: CVE-2021-30180 is a critical unsafe deserialization vulnerability in Apache Dubbo, published on 31 May 2021. 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-2021-30180 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.dubbo:dubbo (Maven): affected from 2.7.0; fixed in 2.7.10\n- org.apache.dubbo:dubbo (Maven): affected from 2.7.0; fixed in 2.7.10\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-2021-30180/ (Markdown: https://insights.sbomify.com/CVE-2021-30180/index.md)","id":"CVE-2021-30180","markdown":"https://insights.sbomify.com/CVE-2021-30180/index.md","name":"CVE-2021-30180","record":{"aliases":["GHSA-7wfc-x4f7-gg2x"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Java RPC framework","requires_auth":"none","summary":"Attackers can achieve remote code execution by poisoning YAML routing rules in Apache Dubbo when tag routing is enabled.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"dubbo","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-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"Apache Dubbo prior to 2.7.9 support Tag routing which will enable a customer to route the request to the right server. These rules are used by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers may enable calling arbitrary constructors.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2025-08-18","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-08-18T17:02:42Z","kind":"github_poc","ref":"https://github.com/shoucheng3/apache__dubbo_CVE-2021-30180_2-7-9","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)","id":"CVE-2021-30180","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Apache Dubbo RCE on customers via Script route poisoning (Nashorn script injection)","id":"CVE-2021-30181"},"packages":[{"ecosystem":"Maven","fixed":["2.7.10"],"introduced":["2.7.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":null,"source":"GHSA-7wfc-x4f7-gg2x"},{"ecosystem":"Maven","fixed":["2.7.10"],"introduced":["2.7.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","source":"GHSA-7wfc-x4f7-gg2x"}],"prev":{"headline":"Apache Dubbo Pre-auth RCE via Java deserialization in the Generic filter","id":"CVE-2021-30179"},"products":["Apache Dubbo"],"published":"2021-05-31","related":[{"cvss_score":9.8,"headline":"Bypass serialize checks in Apache Dubbo","id":"CVE-2023-29234","kev_date_added":null,"published":"2023-12-15"},{"cvss_score":9.8,"headline":"Apache Dubbo: Bypass deny serialize list check in Apache Dubbo","id":"CVE-2023-46279","kev_date_added":null,"published":"2023-12-15"},{"cvss_score":9.8,"headline":"Regular expression Denial of Service in MooTools","id":"CVE-2021-32824","kev_date_added":null,"published":"2023-01-03"},{"cvss_score":9.8,"headline":"Apache Dubbo Hession Deserialization Vulnerability Gadgets Bypass","id":"CVE-2022-39198","kev_date_added":null,"published":"2022-10-18"},{"cvss_score":9.8,"headline":"Dubbo Hessian cause RCE when parse error","id":"CVE-2021-43297","kev_date_added":null,"published":"2022-01-10"},{"cvss_score":9.8,"headline":"Unprotected input value toString cause RCE","id":"CVE-2021-36161","kev_date_added":null,"published":"2021-09-09"},{"cvss_score":9.8,"headline":"Bypass deserialization checks in Apache Dubbo","id":"CVE-2021-37579","kev_date_added":null,"published":"2021-09-09"}],"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":"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Apache Software Foundation"]},"summary":"Attackers can achieve remote code execution by poisoning YAML routing rules in Apache Dubbo when tag routing is enabled.","url":"https://insights.sbomify.com/CVE-2021-30180/"}