{"answers":{"affected":"3 open source packages ship an affected version, including github.com/valyala/fasthttp. It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-21221 in the wild and no public exploit code.","fix":"Upgrade github.com/valyala/fasthttp to 1.34.0 or later.","what":"CVE-2022-21221 is a medium-severity path traversal vulnerability in github.com/valyala/fasthttp, published on 17 Mar 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-2022-21221 and fix it if it is affected.\n\nWhat it is: CVE-2022-21221 is a medium-severity path traversal vulnerability in github.com/valyala/fasthttp, published on 17 Mar 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-2022-21221 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/valyala/fasthttp (Go): affected all versions; fixed in 1.34.0\n- github.com/valyala/fasthttp (Go): affected all versions; fixed in 1.34.0\n- github.com/valyala/fasthttp (Go): affected all versions; fixed in 1.34.0\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-2022-21221/ (Markdown: https://insights.sbomify.com/CVE-2022-21221/index.md)","id":"CVE-2022-21221","markdown":"https://insights.sbomify.com/CVE-2022-21221/index.md","name":"CVE-2022-21221","record":{"aliases":["GHSA-fx95-883v-4q4h","GO-2022-0355","SNYK-GOLANG-GITHUBCOMVALYALAFASTHTTP-2407866"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Go HTTP library","requires_auth":"none","summary":"Attackers can read arbitrary files on Windows systems via directory traversal in the fasthttp library's ServeFile function.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"fasthttp","vendor":"fasthttp_project"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"The package github.com/valyala/fasthttp before 1.34.0 are vulnerable to Directory Traversal via the ServeFile function, due to improper sanitization. It is possible to be exploited by using a backslash %5c character in the path. **Note:** This security issue impacts Windows users only.","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":"Directory Traversal","id":"CVE-2022-21221","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2022"},"n_packages":3,"n_references":5,"next":{"headline":"Regular Expression Denial of Service (ReDoS)","id":"CVE-2022-21222"},"packages":[{"ecosystem":"Go","fixed":["1.34.0"],"introduced":["0"],"last_affected":[],"package":"github.com/valyala/fasthttp","purl":null,"source":"GHSA-fx95-883v-4q4h"},{"ecosystem":"Go","fixed":["1.34.0"],"introduced":["0"],"last_affected":[],"package":"github.com/valyala/fasthttp","purl":"pkg:golang/github.com/valyala/fasthttp","source":"GHSA-fx95-883v-4q4h"},{"ecosystem":"Go","fixed":["1.34.0"],"introduced":["0"],"last_affected":[],"package":"github.com/valyala/fasthttp","purl":"pkg:golang/github.com/valyala/fasthttp","source":"GO-2022-0355"}],"prev":{"headline":"XML external entity in Intel(R) Quartus(R) Prime Pro Edition","id":"CVE-2022-21220"},"products":["github.com/valyala/fasthttp"],"published":"2022-03-17","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["n/a"]},"summary":"Attackers can read arbitrary files on Windows systems via directory traversal in the fasthttp library's ServeFile function.","url":"https://insights.sbomify.com/CVE-2022-21221/"}