{"id":"CVE-2026-50267","revision":"a42d68fe35de42fcbe7f93b68a473961","records":[{"revision":"a42d68fe35de42fcbe7f93b68a473961","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-50267","aliases":[],"title":"Steeltoe: TLS private keys written to /tmp with default permissions, never deleted","description":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Configuration.Abstractions 4.0.0 through 4.1.0, when MySQL or PostgreSQL service bindings from `VCAP_SERVICES` include TLS client credentials, the Connectors library writes those credentials to temporary files in `Path.GetTempPath()` using `File.CreateText`. On Linux, `File.CreateText` creates files with mode `0644` (world-readable) under the process umask, and the files are never deleted. The same key material is protected at mode `0400` in `/proc/<pid>/environ`. Steeltoe.Configuration.Abstractions version 4.2.0 patches the issue. If an immediate upgrade is not possible, prevent other processes from running in the container under a different UID with access to `/tmp`.","state":0,"publishedAt":"2026-06-17T21:57:09.043+00:00","modifiedAt":"2026-06-18T19:11:04.674+00:00","affected":[{"ecosystem":"Vendor product","name":"Steeltoe.Configuration.Abstractions","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SteeltoeOSS\",\n                    \"product\": \"Steeltoe.Configuration.Abstractions\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.0.0, < 4.2.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-rxrh-4j9h-xgg9","https://github.com/SteeltoeOSS/Steeltoe/commit/8dd97cc6c4b184121a4bd1f92f9ac16918433471"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50267","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-50267","identifiers":["CVE-2026-50267"]},"retained":false,"historicalAffected":[]}],"coverage":[]}