{"answers":{"affected":"2 open source packages ship an affected version, including @backstage/plugin-auth-backend. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-32236 in the wild and no public exploit code.","fix":"Upgrade @backstage/plugin-auth-backend to 0.27.1 or later.","what":"CVE-2026-32236 is a low-severity server-side request forgery vulnerability in Linuxfoundation Backstage, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-32236 and fix it if it is affected.\n\nWhat it is: CVE-2026-32236 is a low-severity server-side request forgery vulnerability in Linuxfoundation Backstage, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-32236 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/plugin-auth-backend (npm): affected all versions; fixed in 0.27.1\n- @backstage/plugin-auth-backend (npm): affected all versions; fixed in 0.27.1\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-2026-32236/ (Markdown: https://insights.sbomify.com/CVE-2026-32236/index.md)","id":"CVE-2026-32236","markdown":"https://insights.sbomify.com/CVE-2026-32236/index.md","name":"CVE-2026-32236","record":{"aliases":["GHSA-qp4c-xg64-7c6x","ROOT-APP-NPM-CVE-2026-32236"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Backstage auth plugin","requires_auth":"none","summary":"An SSRF vulnerability in the Backstage auth plugin allows bypassing IP restrictions during redirects when an experimental feature is enabled.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"backstage","vendor":"linuxfoundation"}],"cvss":{"score":1.7,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery (SSRF) vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD\nmetadata fetch validates the initial client_id hostname against private IP ranges but does not apply the same validation after HTTP redirects. The practical impact is limited. The attacker cannot read the response body from the internal request, cannot control request headers or method, and the feature must be explicitly enabled via an experimental flag that is off by default. Deployments that restrict allowedClientIdPatterns to specific trusted domains are not affected. Patched in @backstage/plugin-auth-backend version 0.27.1.","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/plugin-auth-backend: SSRF in experimental CIMD metadata fetch","id":"CVE-2026-32236","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"linuxfoundation:backstage","products":["linuxfoundation:backstage"],"type":"ssrf","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","id":"CVE-2026-32237"},"packages":[{"ecosystem":"npm","fixed":["0.27.1"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-auth-backend","purl":null,"source":"GHSA-qp4c-xg64-7c6x"},{"ecosystem":"npm","fixed":["0.27.1"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-auth-backend","purl":"pkg:npm/%40backstage/plugin-auth-backend","source":"GHSA-qp4c-xg64-7c6x"}],"prev":{"headline":"@backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass","id":"CVE-2026-32235"},"products":["plugin-auth-backend"],"published":"2026-03-12","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":"2026-04-15","vendors":["@backstage"]},"summary":"An SSRF vulnerability in the Backstage auth plugin allows bypassing IP restrictions during redirects when an experimental feature is enabled.","url":"https://insights.sbomify.com/CVE-2026-32236/"}