{"answers":{"affected":"2 open source packages ship an affected version, including @backstage/plugin-scaffolder-backend-module-sentry. It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-106459 in the wild and no public exploit code.","fix":"Upgrade @backstage/plugin-scaffolder-backend-module-sentry to 0.3.8 or later.","what":"CVE-2026-106459 is a high-severity server-side request forgery vulnerability in Linuxfoundation Backstage, published on 6 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-2026-106459 and fix it if it is affected.\n\nWhat it is: CVE-2026-106459 is a high-severity server-side request forgery vulnerability in Linuxfoundation Backstage, published on 6 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-2026-106459 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/plugin-scaffolder-backend-module-sentry (npm): affected from 0.3.0; fixed in 0.3.8\n- @backstage/plugin-scaffolder-backend-module-sentry (npm): affected from 0.3.0; fixed in 0.3.8\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-2026-106459/ (Markdown: https://insights.sbomify.com/CVE-2026-106459/index.md)","id":"CVE-2026-106459","markdown":"https://insights.sbomify.com/CVE-2026-106459/index.md","name":"CVE-2026-106459","record":{"aliases":["GHSA-g734-fhp4-7mfp"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Backstage Sentry plugin","requires_auth":"low_privilege","summary":"An authenticated user can trigger Server-Side Request Forgery in Backstage Sentry actions, potentially disclosing integration credentials.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"backstage","vendor":"linuxfoundation"},{"product":"backstage\\/plugin-scaffolder-backend-module-sentry","vendor":"linuxfoundation"}],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Backstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. This issue is fixed in version 0.3.8.","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: Improper input validation in Sentry scaffolder actions","id":"CVE-2026-106459","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"linuxfoundation:backstage","products":["linuxfoundation:backstage"],"type":"ssrf","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Backstage: Explicit negative email verification can be ignored during shared OAuth profile normalization","id":"CVE-2026-106460"},"packages":[{"ecosystem":"npm","fixed":["0.3.8"],"introduced":["0.3.0"],"last_affected":[],"package":"@backstage/plugin-scaffolder-backend-module-sentry","purl":null,"source":"GHSA-g734-fhp4-7mfp"},{"ecosystem":"npm","fixed":["0.3.8"],"introduced":["0.3.0"],"last_affected":[],"package":"@backstage/plugin-scaffolder-backend-module-sentry","purl":"pkg:npm/%40backstage/plugin-scaffolder-backend-module-sentry","source":"GHSA-g734-fhp4-7mfp"}],"prev":{"headline":"Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates","id":"CVE-2026-106458"},"products":["backstage","plugin-scaffolder-backend-module-sentry"],"published":"2026-10-06","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 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":"An authenticated user can trigger Server-Side Request Forgery in Backstage Sentry actions, potentially disclosing integration credentials.","url":"https://insights.sbomify.com/CVE-2026-106459/"}