{"answers":{"affected":"3 open source packages ship an affected version, including github.com/gorilla/handlers. It affects 1 product.","exploited":"There is no known exploitation of CVE-2017-20146 in the wild and no public exploit code.","fix":"Upgrade github.com/gorilla/handlers to 1.3.0 or later.","what":"CVE-2017-20146 is a critical vulnerability in github.com/gorilla/handlers, published on 27 Dec 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-2017-20146 and fix it if it is affected.\n\nWhat it is: CVE-2017-20146 is a critical vulnerability in github.com/gorilla/handlers, published on 27 Dec 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-2017-20146 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/gorilla/handlers (Go): affected all versions; fixed in 1.3.0\n- github.com/gorilla/handlers (Go): affected all versions; fixed in 1.3.0\n- github.com/gorilla/handlers (Go): affected all versions; fixed in 1.3.0\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-2017-20146/ (Markdown: https://insights.sbomify.com/CVE-2017-20146/index.md)","id":"CVE-2017-20146","markdown":"https://insights.sbomify.com/CVE-2017-20146/index.md","name":"CVE-2017-20146","record":{"aliases":["DEBIAN-CVE-2017-20146","GHSA-jcr6-mmjj-pchw","GO-2020-0020","UBUNTU-CVE-2017-20146"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Go CORS handler","requires_auth":"none","summary":"Attackers can bypass Same Origin Policy restrictions by controlling CORS headers in the gorilla/handlers library.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Go","cpe":[{"product":"handlers","vendor":"gorillatoolkit"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"description":"Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.","ecosystems":["Go"],"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":"Improper access control in github.com/gorilla/handlers","id":"CVE-2017-20146","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"security_feature_bypass","year":"2017"},"n_packages":3,"n_references":3,"next":{"headline":"Denial of service in n/a","id":"CVE-2017-20147"},"packages":[{"ecosystem":"Go","fixed":["1.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/gorilla/handlers","purl":null,"source":"GHSA-jcr6-mmjj-pchw"},{"ecosystem":"Go","fixed":["1.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/gorilla/handlers","purl":"pkg:golang/github.com/gorilla/handlers","source":"GHSA-jcr6-mmjj-pchw"},{"ecosystem":"Go","fixed":["1.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/gorilla/handlers","purl":"pkg:golang/github.com/gorilla/handlers","source":"GO-2020-0020"}],"prev":{"headline":"Tecrail Responsive Filemanger path traversal","id":"CVE-2017-20145"},"products":["github.com/gorilla/handlers"],"published":"2022-12-27","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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-04-11","vendors":["github.com/gorilla/handlers"]},"summary":"Attackers can bypass Same Origin Policy restrictions by controlling CORS headers in the gorilla/handlers library.","url":"https://insights.sbomify.com/CVE-2017-20146/"}