{"answers":{"affected":"4 open source packages ship an affected version, including @backstage/plugin-search-backend and @backstage/plugin-search-backend-module-elasticsearch. It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-106562 in the wild and no public exploit code.","fix":"Upgrade @backstage/plugin-search-backend to 2.1.6 or later.","what":"CVE-2026-106562 is a medium-severity missing authorization vulnerability in Linuxfoundation Backstage, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-106562 and fix it if it is affected.\n\nWhat it is: CVE-2026-106562 is a medium-severity missing authorization vulnerability in Linuxfoundation Backstage, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-106562 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/plugin-search-backend (npm): affected all versions; fixed in 2.1.6\n- @backstage/plugin-search-backend (npm): affected all versions; fixed in 2.1.6\n- @backstage/plugin-search-backend-module-elasticsearch (npm): affected all versions; fixed in 1.8.7\n- @backstage/plugin-search-backend-module-elasticsearch (npm): affected all versions; fixed in 1.8.7\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-2026-106562/ (Markdown: https://insights.sbomify.com/CVE-2026-106562/index.md)","id":"CVE-2026-106562","markdown":"https://insights.sbomify.com/CVE-2026-106562/index.md","name":"CVE-2026-106562","record":{"aliases":["GHSA-9325-vq29-gp3v"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Backstage developer portal","requires_auth":"low_privilege","summary":"Authenticated users can bypass search document denial policies to view unauthorized results in Backstage deployments using Elasticsearch or OpenSearch.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"backstage","vendor":"linuxfoundation"},{"product":"backstage\\/plugin-search-backend","vendor":"linuxfoundation"},{"product":"backstage\\/plugin-search-backend-module-elasticsearch","vendor":"linuxfoundation"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-754","name":"Improper Check for Unusual or Exceptional Conditions"}],"description":"Backstage is an open framework for building developer portals. Prior to 2.1.6 in @backstage/plugin-search-backend and 1.8.7 in @backstage/plugin-search-backend-module-elasticsearch, search engine permission filtering could return documents denied by policy. An authenticated Backstage user subject to a DENY policy for search document types could receive unauthorized results in deployments with permission.enabled set to true and an Elasticsearch or OpenSearch backend. This issue is fixed in @backstage/plugin-search-backend 2.1.6 and @backstage/plugin-search-backend-module-elasticsearch 1.8.7.","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":"Backstage: Incorrect authorization in search engine permission filtering","id":"CVE-2026-106562","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"linuxfoundation:backstage","products":["linuxfoundation:backstage"],"type":"missing_authorization","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"Backstage: Improper entity validation in deprecated Kubernetes services endpoint","id":"CVE-2026-106563"},"packages":[{"ecosystem":"npm","fixed":["2.1.6"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-search-backend","purl":null,"source":"GHSA-9325-vq29-gp3v"},{"ecosystem":"npm","fixed":["2.1.6"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-search-backend","purl":"pkg:npm/%40backstage/plugin-search-backend","source":"GHSA-9325-vq29-gp3v"},{"ecosystem":"npm","fixed":["1.8.7"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-search-backend-module-elasticsearch","purl":null,"source":"GHSA-9325-vq29-gp3v"},{"ecosystem":"npm","fixed":["1.8.7"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-search-backend-module-elasticsearch","purl":"pkg:npm/%40backstage/plugin-search-backend-module-elasticsearch","source":"GHSA-9325-vq29-gp3v"}],"prev":{"headline":"Backstage: Sensitive information disclosure in Kubernetes resource queries","id":"CVE-2026-106561"},"products":["backstage","plugin-search-backend","plugin-search-backend-module-elasticsearch"],"published":"2026-10-07","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-07","vendors":["@backstage","backstage"]},"summary":"Authenticated users can bypass search document denial policies to view unauthorized results in Backstage deployments using Elasticsearch or OpenSearch.","url":"https://insights.sbomify.com/CVE-2026-106562/"}