{"answers":{"affected":"4 open source packages ship an affected version, including org.apache.dubbo:dubbo-parent. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32824 exists.","fix":"Upgrade org.apache.dubbo:dubbo-parent to a fixed version for your release line: 2.6.10 or 2.7.10.","what":"CVE-2021-32824 is a critical unsafe deserialization vulnerability in Apache Dubbo, published on 3 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-32824 and fix it if it is affected.\n\nWhat it is: CVE-2021-32824 is a critical unsafe deserialization vulnerability in Apache Dubbo, published on 3 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32824 exists.\n\nAffected packages and fixed versions:\n- org.apache.dubbo:dubbo-parent (Maven): affected all versions; fixed in 2.6.10\n- org.apache.dubbo:dubbo-parent (Maven): affected all versions; fixed in 2.6.10\n- org.apache.dubbo:dubbo-parent (Maven): affected from 2.7.0; fixed in 2.7.10\n- org.apache.dubbo:dubbo-parent (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-2021-32824/ (Markdown: https://insights.sbomify.com/CVE-2021-32824/index.md)","id":"CVE-2021-32824","markdown":"https://insights.sbomify.com/CVE-2021-32824/index.md","name":"CVE-2021-32824","record":{"aliases":["GHSA-fprr-rrm8-4534"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Java RPC framework","requires_auth":"none","summary":"Unauthenticated attackers can achieve remote code execution via unsafe deserialization in the Telnet handler of Apache Dubbo.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"dubbo","vendor":"apache"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","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-502","name":"Deserialization of Untrusted Data"}],"description":"Apache Dubbo is a java based, open source RPC framework. Versions prior to 2.6.10 and 2.7.10 are vulnerable to pre-auth remote code execution via arbitrary bean manipulation in the Telnet handler. The Dubbo main service port can be used to access a Telnet Handler which offers some basic methods to collect information about the providers and methods exposed by the service and it can even allow to shutdown the service. This endpoint is unprotected. Additionally, a provider method can be invoked using the `invoke` handler. This handler uses a safe version of FastJson to process the call arguments. However, the resulting list is later processed with `PojoUtils.realize` which can be used to instantiate arbitrary classes and invoke its setters. Even though FastJson is properly protected with a default blocklist, `PojoUtils.realize` is not, and an attacker can leverage that to achieve remote code execution. Versions 2.6.10 and 2.7.10 contain fixes for this issue.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Regular expression Denial of Service in MooTools","id":"CVE-2021-32824","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":4,"n_references":1,"next":{"headline":"ZipSlip vulnerability in bblfshd","id":"CVE-2021-32825"},"packages":[{"ecosystem":"Maven","fixed":["2.6.10"],"introduced":["0"],"last_affected":[],"package":"org.apache.dubbo:dubbo-parent","purl":null,"source":"GHSA-fprr-rrm8-4534"},{"ecosystem":"Maven","fixed":["2.6.10"],"introduced":["0"],"last_affected":[],"package":"org.apache.dubbo:dubbo-parent","purl":"pkg:maven/org.apache.dubbo/dubbo-parent","source":"GHSA-fprr-rrm8-4534"},{"ecosystem":"Maven","fixed":["2.7.10"],"introduced":["2.7.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo-parent","purl":null,"source":"GHSA-fprr-rrm8-4534"},{"ecosystem":"Maven","fixed":["2.7.10"],"introduced":["2.7.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo-parent","purl":"pkg:maven/org.apache.dubbo/dubbo-parent","source":"GHSA-fprr-rrm8-4534"}],"prev":{"headline":"Potential Denial-of-Service in bindata","id":"CVE-2021-32823"},"products":["Dubbo"],"published":"2023-01-03","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":"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)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-03-10","vendors":["Apache"]},"summary":"Unauthenticated attackers can achieve remote code execution via unsafe deserialization in the Telnet handler of Apache Dubbo.","url":"https://insights.sbomify.com/CVE-2021-32824/"}