{"answers":{"affected":"2 open source packages ship an affected version, including url-parse. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27515 in the wild and no public exploit code.","fix":"Upgrade url-parse to 1.5.0 or later.","what":"CVE-2021-27515 is a medium-severity vulnerability in n/a, published on 21 Feb 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-2021-27515 and fix it if it is affected.\n\nWhat it is: CVE-2021-27515 is a medium-severity vulnerability in n/a, published on 21 Feb 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-2021-27515 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- url-parse (npm): affected from 0.1.0; fixed in 1.5.0\n- url-parse (npm): affected from 0.1.0; fixed in 1.5.0\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-2021-27515/ (Markdown: https://insights.sbomify.com/CVE-2021-27515/index.md)","id":"CVE-2021-27515","markdown":"https://insights.sbomify.com/CVE-2021-27515/index.md","name":"CVE-2021-27515","record":{"aliases":["DEBIAN-CVE-2021-27515","GHSA-9m6j-fcg5-2442","UBUNTU-CVE-2021-27515"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript URL parser","requires_auth":"none","summary":"Attackers can bypass URL validation checks by using backslashes, potentially leading to open redirects or security bypasses in applications using this library.","user_interaction":"not_required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"url-parse","vendor":"url-parse_project"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[],"description":"url-parse before 1.5.0 mishandles certain uses of backslash such as http:\\/ and interprets the URI as a relative path.","ecosystems":["npm"],"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":"Path traversal in url-parse","id":"CVE-2021-27515","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"open_redirect","year":"2021"},"n_packages":2,"n_references":5,"next":{"headline":"URIjs Hostname spoofing via backslashes in URL","id":"CVE-2021-27516"},"packages":[{"ecosystem":"npm","fixed":["1.5.0"],"introduced":["0.1.0"],"last_affected":[],"package":"url-parse","purl":null,"source":"GHSA-9m6j-fcg5-2442"},{"ecosystem":"npm","fixed":["1.5.0"],"introduced":["0.1.0"],"last_affected":[],"package":"url-parse","purl":"pkg:npm/url-parse","source":"GHSA-9m6j-fcg5-2442"}],"prev":{"headline":"Auth bypass in n/a","id":"CVE-2021-27514"},"products":["n/a"],"published":"2021-02-21","related":[{"cvss_score":10,"headline":"Open Redirect in url-parse","id":"CVE-2018-3774","kev_date_added":null,"published":"2018-08-12"},{"cvss_score":8.8,"headline":"Authorization Bypass Through User-Controlled Key in unshiftio/url-parse","id":"CVE-2022-0512","kev_date_added":null,"published":"2022-02-14"},{"cvss_score":6.5,"headline":"Authorization Bypass Through User-Controlled Key in unshiftio/url-parse","id":"CVE-2022-0691","kev_date_added":null,"published":"2022-02-21"},{"cvss_score":6.5,"headline":"Authorization Bypass Through User-Controlled Key in unshiftio/url-parse","id":"CVE-2022-0686","kev_date_added":null,"published":"2022-02-20"},{"cvss_score":6.5,"headline":"Authorization Bypass Through User-Controlled Key in unshiftio/url-parse","id":"CVE-2022-0639","kev_date_added":null,"published":"2022-02-17"},{"cvss_score":5.3,"headline":"Open Redirect in unshiftio/url-parse","id":"CVE-2021-3664","kev_date_added":null,"published":"2021-07-26"}],"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":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can bypass URL validation checks by using backslashes, potentially leading to open redirects or security bypasses in applications using this library.","url":"https://insights.sbomify.com/CVE-2021-27515/"}