{"answers":{"affected":"2 open source packages ship an affected version, including @backstage/plugin-scaffolder-backend. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-29184 in the wild and no public exploit code.","fix":"Upgrade @backstage/plugin-scaffolder-backend to 3.1.4 or later.","what":"CVE-2026-29184 is a low-severity vulnerability in backstage, published on 7 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-29184 and fix it if it is affected.\n\nWhat it is: CVE-2026-29184 is a low-severity vulnerability in backstage, published on 7 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-29184 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @backstage/plugin-scaffolder-backend (npm): affected all versions; fixed in 3.1.4\n- @backstage/plugin-scaffolder-backend (npm): affected all versions; fixed in 3.1.4\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-2026-29184/ (Markdown: https://insights.sbomify.com/CVE-2026-29184/index.md)","id":"CVE-2026-29184","markdown":"https://insights.sbomify.com/CVE-2026-29184/index.md","name":"CVE-2026-29184","record":{"aliases":["GHSA-8qp7-fhr9-fw53"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Backstage developer portal","requires_auth":"high_privilege","summary":"A malicious scaffolder template can bypass log redaction to exfiltrate secrets via task event logs in Backstage developer portals.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"backstage\\/plugin-scaffolder-backend","vendor":"linuxfoundation"}],"cvss":{"score":2,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-532","name":"Insertion of Sensitive Information into Log File"}],"description":"Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4.","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-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass","id":"CVE-2026-29184","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"@backstage/integration: Potential reading of SCM URLs using built in token","id":"CVE-2026-29185"},"packages":[{"ecosystem":"npm","fixed":["3.1.4"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-scaffolder-backend","purl":null,"source":"GHSA-8qp7-fhr9-fw53"},{"ecosystem":"npm","fixed":["3.1.4"],"introduced":["0"],"last_affected":[],"package":"@backstage/plugin-scaffolder-backend","purl":"pkg:npm/%40backstage/plugin-scaffolder-backend","source":"GHSA-8qp7-fhr9-fw53"}],"prev":{"headline":"SiYuan: Unauthenticated Reflected XSS via SVG Injection in /api/icon/getDynamicIcon Endpoint","id":"CVE-2026-29183"},"products":["backstage"],"published":"2026-03-07","related":[{"cvss_score":4.4,"headline":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","id":"CVE-2026-32237","kev_date_added":null,"published":"2026-03-12"}],"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":"2026-03-09","vendors":["backstage"]},"summary":"A malicious scaffolder template can bypass log redaction to exfiltrate secrets via task event logs in Backstage developer portals.","url":"https://insights.sbomify.com/CVE-2026-29184/"}