{"id":"CVE-2023-35926","summary":"Insecure sandbox in Backstage Scaffolder plugin","details":"Backstage is an open platform for building developer portals. The Backstage scaffolder-backend plugin uses a templating library that requires sandbox, as it by design allows for code injection. The library used for this sandbox so far has been `vm2`, but in light of several past vulnerabilities and existing vulnerabilities  that may not have a fix, the plugin has switched to using a different sandbox library. A malicious actor with write access to a registered scaffolder template could manipulate the template in a way that allows for remote code execution on the scaffolder-backend instance. This was only exploitable in the template YAML definition itself and not by user input data. This is vulnerability is fixed in version 1.15.0 of `@backstage/plugin-scaffolder-backend`.","aliases":["GHSA-wg6p-jmpc-xjmr"],"modified":"2026-08-12T03:51:11.460277257Z","published":"2023-06-22T13:29:03.361Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35926.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-94"]},"references":[{"type":"WEB","url":"https://github.com/backstage/backstage/releases/tag/v1.15.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35926.json"},{"type":"ADVISORY","url":"https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-35926"},{"type":"FIX","url":"https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070593c8949a"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/backstage/backstage","events":[{"introduced":"0"},{"fixed":"07e8526b304368b31280f5fc486f783b61c78e38"},{"fixed":"fb7375507d56faedcb7bb3665480070593c8949a"}],"database_specific":{"cpe":"cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.15.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v1.15.0-next.1","v1.15.0-next.3","v1.15.0-next.2","v1.15.0-next.0","v1.14.0","v1.14.0-next.2","v1.14.0-next.1","v1.13.0","v1.14.0-next.0","v1.13.0-next.3","v1.13.0-next.2","v1.13.0-next.1","v1.13.0-next.0","v1.12.0","v1.12.0-next.2","v1.12.0-next.1","v1.12.0-next.0","v1.11.0","v1.11.0-next.2","v1.11.0-next.1","v1.11.0-next.0","v1.10.0","v1.10.0-next.2","v1.10.0-next.1","v1.10.0-next.0","v1.9.0","v1.9.0-next.4","v1.9.0-next.3","v1.9.0-next.2","v1.9.0-next.1","v1.9.0-next.0","v1.8.0-next.1","v1.8.0","v1.8.0-next.2","v1.7.0","v1.8.0-next.0","v1.7.0-next.2","v1.7.0-next.1","v1.7.0-next.0","v1.6.0","v1.6.0-next.3","v1.6.0-next.2","v1.6.0-next.1","v1.5.0","v1.6.0-next.0","v1.5.0-next.3","v1.5.0-next.2","v1.5.0-next.1","v1.5.0-next.0","v1.4.0","v1.4.0-next.3","v1.3.0","v1.4.0-next.1","v1.4.0-next.2","v1.4.0-next.0","v1.3.0-next.2","v1.3.0-next.1","v1.3.0-next.0","v1.2.0","v1.2.0-next.3","v1.2.0-next.2","v1.2.0-next.1","v1.2.0-next.0","v1.1.0","v1.1.0-next.3","v1.1.0-next.2","v1.1.0-next.1","v1.1.0-next.0","v1.0.0","v0.71.0","v0.71.0-next.0","v0.70.0","v0.69.0","v0.68.0","v0.67.0","v0.67.0-next.0","v0.66.0","v0.66.0-next.1","v0.66.0-next.0","v0.65.0","release-2022-01-27","v0.64.1","release-2022-01-20.1","v0.64.0","release-2022-01-20","v0.63.0","release-2022-01-13","v0.63.1","release-2022-01-18","v0.62.0","release-2022-01-04","v0.61.0","release-2021-12-30","v0.60.1","release-2021-12-24","v0.60.0","release-2021-12-23","v0.59.0","release-2021-12-16","v0.58.1","release-2021-12-10","v0.58.0","release-2021-12-09","v0.57.1","release-2021-12-07","v0.57.0","release-2021-12-02","v0.56.0","release-2021-11-25","v0.55.1","release-2021-11-19","v0.55.0","release-2021-11-18","v0.54.4","release-2021-11-17.1","v0.54.3","release-2021-11-17","v0.54.2","release-2021-11-12","v0.54.1","release-2021-11-11.1","v0.54.0","release-2021-11-11","v0.53.3","release-2021-11-08","v0.53.0","release-2021-10-28","v0.53.2","release-2021-10-29.1","v0.53.1","release-2021-10-29","v0.52.1","release-2021-10-22","v0.51.2","release-2021-10-19","v0.52.0","release-2021-10-21","v0.51.1","release-2021-10-16","v0.51.0","release-2021-10-14","v0.50.2","release-2021-10-13","v0.50.1","release-2021-10-11","v0.50.0","release-2021-10-07","release-2021-10-06","release-2021-10-04","v0.49.0","release-2021-09-30","v0.48.1","release-2021-09-28","v0.48.0","release-2021-09-23","v0.47.2","release-2021-09-21","v0.47.1","release-2021-09-17","v0.47.0","release-2021-09-16","v0.46.1","release-2021-09-14","v0.46.0","release-2021-09-09","v0.45.0","release-2021-09-02","v0.44.1","release-2021-08-31","v0.44.0","release-2021-08-26","v0.43.0","release-2021-08-20","v0.42.0","release-2021-08-19","v0.41.1","release-2021-08-17","v0.41.0","release-2021-08-12","v0.40.1","release-2021-08-11","v0.40.0","release-2021-08-05","v0.39.1","release-2021-08-03","v0.39.0","release-2021-07-29","v0.38.0","release-2021-07-22","v0.37.1","release-2021-07-16","v0.37.0","release-2021-07-15","v0.36.2","release-2021-07-14.1","v0.36.1","release-2021-07-14","v0.36.0","release-2021-07-08","v0.35.1","release-2021-07-07","v0.35.0","release-2021-07-01","v0.34.1","release-2021-06-28","v0.34.0","release-2021-06-24","v0.33.3","release-2021-06-21.1","v0.33.2","release-2021-06-21","v0.33.1","release-2021-06-18","v0.33.0","release-2021-06-17.1","v0.32.0","release-2021-06-17","v0.31.0","release-2021-06-10.1","v0.30.1","release-2021-06-10","v0.28.0","release-2021-05-20.1","v0.30.0","release-2021-06-03","v0.29.2","release-2021-06-01","v0.29.1","release-2021-05-31","v0.29.0","release-2021-05-27","v0.24.1","release-2021-05-04","v0.26.0","release-2021-05-12.1","v0.27.0","release-2021-05-20","v0.26.1","release-2021-05-17","v0.25.3","release-2021-05-12","v0.25.2","release-2021-05-11","v0.25.1","release-202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