{"id":"CLEANSTART-2026-DE80520","summary":"writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster","details":"Security vulnerability affects the temporal-server-fips package. A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster.","modified":"2026-10-15T01:00:04.258315159Z","published":"2026-10-15T00:39:01.005221Z","upstream":["CVE-2026-5199"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-DE80520.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-5199"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5199"}],"affected":[{"package":{"name":"temporal-server-fips","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/temporal-server-fips"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.31.4-r2"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-DE80520.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:X/RE:M/U:X"}]}