{"answers":{"affected":"2 open source packages ship an affected version, including @backstage/techdocs-common. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-32662 in the wild and no public exploit code.","fix":"Upgrade @backstage/techdocs-common to 0.6.3 or later.","what":"CVE-2021-32662 is a medium-severity path traversal vulnerability in Linuxfoundation Backstage, published on 3 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-32662 and fix it if it is affected.\n\nWhat it is: CVE-2021-32662 is a medium-severity path traversal vulnerability in Linuxfoundation Backstage, published on 3 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-32662 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/techdocs-common (npm): affected all versions; fixed in 0.6.3\n- @backstage/techdocs-common (npm): affected all versions; fixed in 0.6.3\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-2021-32662/ (Markdown: https://insights.sbomify.com/CVE-2021-32662/index.md)","id":"CVE-2021-32662","markdown":"https://insights.sbomify.com/CVE-2021-32662/index.md","name":"CVE-2021-32662","record":{"aliases":["GHSA-pgf8-28gg-vpr6"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Backstage TechDocs library","requires_auth":"low_privilege","summary":"Attackers with source code access can read sensitive files via path traversal in mkdocs.yml configuration, exposing data through the TechDocs API.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"backstage","vendor":"linuxfoundation"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":"Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`.","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":"TechDocs mkdocs.yml path traversal","id":"CVE-2021-32662","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"linuxfoundation:backstage","products":["linuxfoundation:backstage"],"type":"path_traversal","year":"2021"},"n_packages":2,"n_references":3,"next":{"headline":"Unauthorized setup leads to SSRF in Combodo/iTop","id":"CVE-2021-32663"},"packages":[{"ecosystem":"npm","fixed":["0.6.3"],"introduced":["0"],"last_affected":[],"package":"@backstage/techdocs-common","purl":null,"source":"GHSA-pgf8-28gg-vpr6"},{"ecosystem":"npm","fixed":["0.6.3"],"introduced":["0"],"last_affected":[],"package":"@backstage/techdocs-common","purl":"pkg:npm/%40backstage/techdocs-common","source":"GHSA-pgf8-28gg-vpr6"}],"prev":{"headline":"TechDocs object element script injection","id":"CVE-2021-32661"},"products":["backstage"],"published":"2021-06-03","related":[{"cvss_score":9.6,"headline":"Backstage: Sensitive information exposure in Scaffolder","id":"CVE-2026-106501","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":8.8,"headline":"Backstage: Improper validation of TechDocs MkDocs configuration","id":"CVE-2026-106558","kev_date_added":null,"published":"2026-10-07"},{"cvss_score":8.8,"headline":"Backstage: Improper input validation in TechDocs MkDocs configuration","id":"CVE-2026-88064","kev_date_added":null,"published":"2026-09-16"},{"cvss_score":8.5,"headline":"Backstage: Improper input validation in Sentry scaffolder actions","id":"CVE-2026-106459","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":8.5,"headline":"Backstage: Improper filesystem validation in Bitbucket pull-request scaffolder actions","id":"CVE-2026-106486","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":8.5,"headline":"Backstage: Improper task state validation in Scaffolder backend","id":"CVE-2026-106500","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":8.5,"headline":"Path Traversal in @backstage/plugin-scaffolder-backend","id":"CVE-2021-43783","kev_date_added":null,"published":"2021-11-29"}],"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":"2024-08-03","vendors":["backstage"]},"summary":"Attackers with source code access can read sensitive files via path traversal in mkdocs.yml configuration, exposing data through the TechDocs API.","url":"https://insights.sbomify.com/CVE-2021-32662/"}