{"answers":{"affected":"2 open source packages ship an affected version, including org.apache.openmeetings:openmeetings-parent. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27576 in the wild and no public exploit code.","fix":"Upgrade org.apache.openmeetings:openmeetings-parent to 6.0.0 or later.","what":"CVE-2021-27576 is a high-severity denial of service vulnerability in Apache OpenMeetings, published on 15 Mar 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-2021-27576 and fix it if it is affected.\n\nWhat it is: CVE-2021-27576 is a high-severity denial of service vulnerability in Apache OpenMeetings, published on 15 Mar 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-2021-27576 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.openmeetings:openmeetings-parent (Maven): affected from 4.0.0; fixed in 6.0.0\n- org.apache.openmeetings:openmeetings-parent (Maven): affected from 4.0.0; fixed in 6.0.0\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-2021-27576/ (Markdown: https://insights.sbomify.com/CVE-2021-27576/index.md)","id":"CVE-2021-27576","markdown":"https://insights.sbomify.com/CVE-2021-27576/index.md","name":"CVE-2021-27576","record":{"aliases":["GHSA-px9f-597f-wmcf"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache OpenMeetings","requires_auth":"none","summary":"Attackers can overload server bandwidth via the public NetTest web service, causing denial of service in Apache OpenMeetings.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"openmeetings","vendor":"apache"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"If was found that the NetTest web service can be used to overload the bandwidth of a Apache OpenMeetings server. This issue was addressed in Apache OpenMeetings 6.0.0","ecosystems":["Maven"],"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":"Apache OpenMeetings: bandwidth can be overloaded with public web service","id":"CVE-2021-27576","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Incorrect handling of url fragment leads to cache poisoning","id":"CVE-2021-27577"},"packages":[{"ecosystem":"Maven","fixed":["6.0.0"],"introduced":["4.0.0"],"last_affected":[],"package":"org.apache.openmeetings:openmeetings-parent","purl":null,"source":"GHSA-px9f-597f-wmcf"},{"ecosystem":"Maven","fixed":["6.0.0"],"introduced":["4.0.0"],"last_affected":[],"package":"org.apache.openmeetings:openmeetings-parent","purl":"pkg:maven/org.apache.openmeetings/openmeetings-parent","source":"GHSA-px9f-597f-wmcf"}],"prev":{"headline":"Weak cryptography in n/a","id":"CVE-2021-27574"},"products":["Apache OpenMeetings"],"published":"2021-03-15","related":[{"cvss_score":10,"headline":"Apache OpenMeetings does not correctly validate uploaded XML documents","id":"CVE-2017-7664","kev_date_added":null,"published":"2017-07-14"},{"cvss_score":9.8,"headline":"Apache OpenMeetings: Deserialisation of untrusted data in cluster mode","id":"CVE-2024-54676","kev_date_added":null,"published":"2025-01-08"},{"cvss_score":9.8,"headline":"Apache OpenMeetings: allows user impersonation","id":"CVE-2023-28326","kev_date_added":null,"published":"2023-03-28"},{"cvss_score":9.8,"headline":"Apache OpenMeetings RCE","id":"CVE-2016-8736","kev_date_added":null,"published":"2017-10-12"},{"cvss_score":9.8,"headline":"Apache OpenMeetings has Inadequate Encryption Strength","id":"CVE-2017-7673","kev_date_added":null,"published":"2017-07-14"},{"cvss_score":8.8,"headline":"Apache OpenMeetings vulnerable to Cross-Site Request Forgery","id":"CVE-2017-7666","kev_date_added":null,"published":"2017-07-14"},{"cvss_score":8.8,"headline":"Apache OpenMeetings vulnerable to SQL injection","id":"CVE-2017-7681","kev_date_added":null,"published":"2017-07-14"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2025-02-13","vendors":["Apache Software Foundation"]},"summary":"Attackers can overload server bandwidth via the public NetTest web service, causing denial of service in Apache OpenMeetings.","url":"https://insights.sbomify.com/CVE-2021-27576/"}