{"answers":{"affected":"2 open source packages ship an affected version, including @isomorphic-git/cors-proxy. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23664 in the wild and no public exploit code.","fix":"Upgrade @isomorphic-git/cors-proxy to 2.7.1 or later.","what":"CVE-2021-23664 is a high-severity server-side request forgery vulnerability in @isomorphic-git/cors-proxy, published on 21 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-23664 and fix it if it is affected.\n\nWhat it is: CVE-2021-23664 is a high-severity server-side request forgery vulnerability in @isomorphic-git/cors-proxy, published on 21 Jan 2022. 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-2021-23664 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @isomorphic-git/cors-proxy (npm): affected all versions; fixed in 2.7.1\n- @isomorphic-git/cors-proxy (npm): affected all versions; fixed in 2.7.1\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-2021-23664/ (Markdown: https://insights.sbomify.com/CVE-2021-23664/index.md)","id":"CVE-2021-23664","markdown":"https://insights.sbomify.com/CVE-2021-23664/index.md","name":"CVE-2021-23664","record":{"aliases":["GHSA-v82v-rq72-phq9","SNYK-JS-ISOMORPHICGITCORSPROXY-1734788"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js CORS proxy","requires_auth":"none","summary":"An attacker can exploit missing validation in the isomorphic-git CORS proxy to perform Server-side Request Forgery attacks.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"cors-proxy","vendor":"isomorphic-git"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:P","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"The package @isomorphic-git/cors-proxy before 2.7.1 are vulnerable to Server-side Request Forgery (SSRF) due to missing sanitization and validation of the redirection action in middleware.js.","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":"Server-side Request Forgery (SSRF)","id":"CVE-2021-23664","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"ssrf","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Cross-site Scripting (XSS)","id":"CVE-2021-23673"},"packages":[{"ecosystem":"npm","fixed":["2.7.1"],"introduced":["0"],"last_affected":[],"package":"@isomorphic-git/cors-proxy","purl":null,"source":"GHSA-v82v-rq72-phq9"},{"ecosystem":"npm","fixed":["2.7.1"],"introduced":["0"],"last_affected":[],"package":"@isomorphic-git/cors-proxy","purl":"pkg:npm/%40isomorphic-git/cors-proxy","source":"GHSA-v82v-rq72-phq9"}],"prev":{"headline":"Prototype Pollution","id":"CVE-2021-23663"},"products":["@isomorphic-git/cors-proxy"],"published":"2022-01-21","related":[],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["n/a"]},"summary":"An attacker can exploit missing validation in the isomorphic-git CORS proxy to perform Server-side Request Forgery attacks.","url":"https://insights.sbomify.com/CVE-2021-23664/"}