{"answers":{"affected":"4 open source packages ship an affected version, including @backstage/plugin-auth-node. It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-106460 in the wild and no public exploit code.","fix":"Upgrade @backstage/plugin-auth-node to a fixed version for your release line: 0.6.15 or 0.7.5.","what":"CVE-2026-106460 is a medium-severity authentication bypass 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-2026-106460 and fix it if it is affected.\n\nWhat it is: CVE-2026-106460 is a medium-severity authentication bypass 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-2026-106460 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/plugin-auth-node (npm): affected from 0.3.0; fixed in 0.6.15\n- @backstage/plugin-auth-node (npm): affected from 0.3.0; fixed in 0.6.15\n- @backstage/plugin-auth-node (npm): affected from 0.7.0; fixed in 0.7.5\n- @backstage/plugin-auth-node (npm): affected from 0.7.0; fixed in 0.7.5\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-2026-106460/ (Markdown: https://insights.sbomify.com/CVE-2026-106460/index.md)","id":"CVE-2026-106460","markdown":"https://insights.sbomify.com/CVE-2026-106460/index.md","name":"CVE-2026-106460","record":{"aliases":["GHSA-xm5q-p7w3-x6cp"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Backstage developer portal","requires_auth":"low_privilege","summary":"Attackers can bypass email verification checks to assume other catalog identities and gain unauthorized access in Backstage developer portals.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"backstage","vendor":"linuxfoundation"},{"product":"backstage\\/plugin-auth-node","vendor":"linuxfoundation"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Backstage is an open framework for building developer portals. From 0.3.0 until 0.6.15 and 0.7.5, the @backstage/plugin-auth-node package did not consistently honor explicit negative email verification during shared OAuth profile normalization. The affected paths include a selected profile email marked verified: false, a matching raw provider email marked email_verified: false, and an email obtained only from an ID token marked email_verified: false. Exploitation requires an admitted identity-provider user who can supply or change an unverified email and a deployment that uses the selected profile email to resolve catalog identities. The verification metadata must apply to the selected email; an absent email_verified claim alone is not affected. In an affected configuration, the user may assume another catalog identity and obtain its associated access and permissions. This issue is fixed in versions 0.6.15 and 0.7.5.","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: Explicit negative email verification can be ignored during shared OAuth profile normalization","id":"CVE-2026-106460","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"linuxfoundation:backstage","products":["linuxfoundation:backstage"],"type":"auth_bypass","year":"2026"},"n_packages":4,"n_references":6,"next":{"headline":"Backstage: Incorrect authorization in scaffolder task listing","id":"CVE-2026-106461"},"packages":[{"ecosystem":"npm","fixed":["0.6.15"],"introduced":["0.3.0"],"last_affected":[],"package":"@backstage/plugin-auth-node","purl":null,"source":"GHSA-xm5q-p7w3-x6cp"},{"ecosystem":"npm","fixed":["0.6.15"],"introduced":["0.3.0"],"last_affected":[],"package":"@backstage/plugin-auth-node","purl":"pkg:npm/%40backstage/plugin-auth-node","source":"GHSA-xm5q-p7w3-x6cp"},{"ecosystem":"npm","fixed":["0.7.5"],"introduced":["0.7.0"],"last_affected":[],"package":"@backstage/plugin-auth-node","purl":null,"source":"GHSA-xm5q-p7w3-x6cp"},{"ecosystem":"npm","fixed":["0.7.5"],"introduced":["0.7.0"],"last_affected":[],"package":"@backstage/plugin-auth-node","purl":"pkg:npm/%40backstage/plugin-auth-node","source":"GHSA-xm5q-p7w3-x6cp"}],"prev":{"headline":"Backstage: Improper input validation in Sentry scaffolder actions","id":"CVE-2026-106459"},"products":["backstage","plugin-auth-node"],"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":"total"},"state":"PUBLISHED","updated":"2026-10-09","vendors":["@backstage","backstage"]},"summary":"Attackers can bypass email verification checks to assume other catalog identities and gain unauthorized access in Backstage developer portals.","url":"https://insights.sbomify.com/CVE-2026-106460/"}