{"answers":{"affected":"2 open source packages ship an affected version, including serve.","exploited":"There is no known exploitation of GHSA-wm7q-rxch-43mx in the wild and no public exploit code.","fix":"Upgrade serve to 6.5.2 or later.","what":"GHSA-wm7q-rxch-43mx is a path traversal vulnerability in serve, published on 1 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for GHSA-wm7q-rxch-43mx and fix it if it is affected.\n\nWhat it is: GHSA-wm7q-rxch-43mx is a path traversal vulnerability in serve, published on 1 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of GHSA-wm7q-rxch-43mx in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- serve (npm): affected all versions; fixed in 6.5.2\n- serve (npm): affected all versions; fixed in 6.5.2\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/GHSA-wm7q-rxch-43mx/ (Markdown: https://insights.sbomify.com/GHSA-wm7q-rxch-43mx/index.md)","id":"GHSA-wm7q-rxch-43mx","markdown":"https://insights.sbomify.com/GHSA-wm7q-rxch-43mx/index.md","name":"GHSA-wm7q-rxch-43mx","record":{"aliases":[],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Node.js static server","requires_auth":"none","summary":"Attackers can bypass file ignore rules to access restricted files or directory listings via URL encoding.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Versions of `serve` before 6.5.2 are vulnerable to the bypass of the ignore functionality. The bypass is possible because validation happens before canonicalization of paths and filenames.\n\nExample:\nHere we have a server that ignores the file test.txt.\n```\nconst serve = require('serve')\nconst server = serve(__dirname, {\n      port: 1337,\n      ignore: ['test.txt']\n})\n```\n\nUsing the URL encoded form of a letter (%65 instead of e) attacker can bypass the ignore control accessing the file. \n\n`curl http://localhost:1337/t%65st.txt`\n\nAdditionally this technique can be used to get directory listings of ignored directories.\n\n## Recommendation\n\nUpdate to version 6.5.2 or later.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"Byass due to validation before canonicalization in serve","id":"GHSA-wm7q-rxch-43mx","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"npm","product":null,"products":[],"type":"path_traversal","year":"2020"},"n_packages":2,"n_references":null,"packages":[{"ecosystem":"npm","fixed":["6.5.2"],"introduced":["0"],"last_affected":[],"package":"serve","purl":null,"source":"GHSA-wm7q-rxch-43mx"},{"ecosystem":"npm","fixed":["6.5.2"],"introduced":["0"],"last_affected":[],"package":"serve","purl":"pkg:npm/serve","source":"GHSA-wm7q-rxch-43mx"}],"products":null,"published":"2020-09-01","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"Attackers can bypass file ignore rules to access restricted files or directory listings via URL encoding.","url":"https://insights.sbomify.com/GHSA-wm7q-rxch-43mx/"}