{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20440 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20440 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20440 is a medium-severity vulnerability in Ibm Api Connect, published on 15 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20440 and fix it if it is affected.\n\nWhat it is: CVE-2021-20440 is a medium-severity vulnerability in Ibm Api Connect, published on 15 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-20440 in the wild and no public exploit code.\n\nAffected product: Ibm Api Connect. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-20440/ (Markdown: https://insights.sbomify.com/CVE-2021-20440/index.md)","id":"CVE-2021-20440","markdown":"https://insights.sbomify.com/CVE-2021-20440/index.md","name":"CVE-2021-20440","record":{"aliases":["GHSA-6f4h-wv9p-43cg"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"API management platform","requires_auth":"low_privilege","summary":"An attacker with a stolen invitation link can register as a member of an API provider organization, gaining unauthorized access to internal resources.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"api_connect","vendor":"ibm"}],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/PR:L/A:L/C:H/AC:H/S:U/I:L/UI:N/RC:C/RL:O/E:U","version":"3.0"},"cwes":[],"description":"IBM API Connect 10.0.0.0, and 2018.4.1.0 through 2018.4.1.13 does not restrict member registration to the intended recepient. An attacker who is a valid user in the user registry used by API Manager can use a stolen invitation link and register themselves as a member of an API provider organization. IBM X-Force ID: 196536.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Business logic in API Connect","id":"CVE-2021-20440","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ibm:api_connect","products":["ibm:api_connect"],"type":"business_logic","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Weak cryptography in Security Verify Bridge","id":"CVE-2021-20441"},"packages":[],"prev":{"headline":"Hardcoded credentials in Security Access Manager","id":"CVE-2021-20439"},"products":["API Connect"],"published":"2021-03-15","related":[{"cvss_score":10,"headline":"Command injection in API Connect","id":"CVE-2019-4202","kev_date_added":null,"published":"2019-04-15"},{"cvss_score":9.8,"headline":"Authentication bypass in IBM API Connect","id":"CVE-2025-13915","kev_date_added":null,"published":"2025-12-26"},{"cvss_score":9.8,"headline":"Command injection in API Connect","id":"CVE-2018-1469","kev_date_added":null,"published":"2018-04-04"},{"cvss_score":9.1,"headline":"IBM API Connect SQL Injection","id":"CVE-2026-9074","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":9,"headline":"Information disclosure in API Connect","id":"CVE-2019-4008","kev_date_added":null,"published":"2019-02-07"},{"cvss_score":8.9,"headline":"Server-side request forgery in API Connect","id":"CVE-2019-4203","kev_date_added":null,"published":"2019-04-15"},{"cvss_score":8.9,"headline":"Code injection in API Connect","id":"CVE-2018-1774","kev_date_added":null,"published":"2018-11-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2024-09-16","vendors":["IBM"]},"summary":"An attacker with a stolen invitation link can register as a member of an API provider organization, gaining unauthorized access to internal resources.","url":"https://insights.sbomify.com/CVE-2021-20440/"}