{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-4640 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-4640 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-4640 is a low-severity vulnerability in Ibm Api Connect, published on 4 Feb 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-4640 and fix it if it is affected.\n\nWhat it is: CVE-2020-4640 is a low-severity vulnerability in Ibm Api Connect, published on 4 Feb 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-4640 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-2020-4640/ (Markdown: https://insights.sbomify.com/CVE-2020-4640/index.md)","id":"CVE-2020-4640","markdown":"https://insights.sbomify.com/CVE-2020-4640/index.md","name":"CVE-2020-4640","record":{"aliases":["GHSA-4j45-pxr4-w4g4"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["data_read","account_takeover"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"IBM API Connect","requires_auth":"low_privilege","summary":"Sensitive data in URL fragments can be cached by intermediaries, allowing attackers to impersonate users and access protected information.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"api_connect","vendor":"ibm"}],"cvss":{"score":3.4,"severity":"low","source":"cna","vector":"CVSS:3.0/PR:L/AC:H/UI:R/S:U/I:L/A:N/C:L/AV:A/RC:C/RL:O/E:U","version":"3.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Certain IBM API Connect 10.0.0.0 through 10.0.1.0 and 2018.4.1.0 through 2018.4.1.13 configurations can result in sensitive information in the URL fragment identifiers. This information can be cached in the intermediate nodes like proxy servers, cdn, logging platforms, etc. An attacker can make use of this information to perform attacks by impersonating a user. IBM X-Force ID: 185510.","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":"Information disclosure in API Connect","id":"CVE-2020-4640","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ibm:api_connect","products":["ibm:api_connect"],"type":"information_disclosure","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in DB2 for Linux- UNIX and Windows","id":"CVE-2020-4642"},"packages":[],"prev":{"headline":"Privilege escalation in API Connect","id":"CVE-2020-4638"},"products":["API Connect"],"published":"2021-02-04","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"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":"Sensitive data in URL fragments can be cached by intermediaries, allowing attackers to impersonate users and access protected information.","url":"https://insights.sbomify.com/CVE-2020-4640/"}