{"answers":{"affected":"2 open source packages ship an affected version, including @backstage/plugin-catalog-backend-module-gitlab. It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-106463 in the wild and no public exploit code.","fix":"Upgrade @backstage/plugin-catalog-backend-module-gitlab to 0.8.7 or later.","what":"CVE-2026-106463 is a medium-severity missing authorization 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-2026-106463 and fix it if it is affected.\n\nWhat it is: CVE-2026-106463 is a medium-severity missing authorization 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-2026-106463 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/plugin-catalog-backend-module-gitlab (npm): affected all versions; fixed in 0.8.7\n- @backstage/plugin-catalog-backend-module-gitlab (npm): affected all versions; fixed in 0.8.7\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-2026-106463/ (Markdown: https://insights.sbomify.com/CVE-2026-106463/index.md)","id":"CVE-2026-106463","markdown":"https://insights.sbomify.com/CVE-2026-106463/index.md","name":"CVE-2026-106463","record":{"aliases":["GHSA-gp6m-x9vw-5c5x"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Backstage GitLab plugin","requires_auth":"low_privilege","summary":"Attackers can gain unauthorized access as a standard user by exploiting improper authorization in GitLab organizational user ingestion.","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-catalog-backend-module-gitlab","vendor":"linuxfoundation"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Backstage is an open framework for building developer portals. Prior to 0.8.7, the @backstage/plugin-catalog-backend-module-gitlab package is affected by improper authorization in gitlab organizational user ingestion. Deployments that enable GitLab organization event ingestion and rely on scoped catalog users as an access boundary may admit an unintended catalog identity. Depending on sign-in and permission configuration, this may allow unauthorized access with the permissions of a standard authenticated user. This issue is fixed in version 0.8.7.","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: Improper authorization in GitLab organizational user ingestion","id":"CVE-2026-106463","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"linuxfoundation:backstage","products":["linuxfoundation:backstage"],"type":"missing_authorization","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Integer overflow in NetX Duo","id":"CVE-2026-106464"},"packages":[{"ecosystem":"npm","fixed":["0.8.7"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-catalog-backend-module-gitlab","purl":null,"source":"GHSA-gp6m-x9vw-5c5x"},{"ecosystem":"npm","fixed":["0.8.7"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-catalog-backend-module-gitlab","purl":"pkg:npm/%40backstage/plugin-catalog-backend-module-gitlab","source":"GHSA-gp6m-x9vw-5c5x"}],"prev":{"headline":"Backstage: Scaffolder credential handling may allow unintended GitHub authentication fallback","id":"CVE-2026-106462"},"products":["backstage","plugin-catalog-backend-module-gitlab"],"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 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":"Attackers can gain unauthorized access as a standard user by exploiting improper authorization in GitLab organizational user ingestion.","url":"https://insights.sbomify.com/CVE-2026-106463/"}