{"id":"CVE-2026-123850","title":"In JetBrains YouTrack before 2026.2.19422 cSS injection was possible in Mermaid diagrams via configuration directives","summary":"In JetBrains YouTrack before 2026.2.19422 cSS injection was possible in Mermaid diagrams via configuration directives","severity":"low","cvss":3.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-1021"],"vendor":"JetBrains","product":"YouTrack","affected":["YouTrack < 2026.2.19422"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:40:42.373709Z"},"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:47:16.888Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123850","references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T16:57:43.125Z","epss":0.00208,"epssPercentile":0.10966,"slug":"CVE-2026-123850","body":"## Overview\n\nIn JetBrains YouTrack before 2026.2.19422 cSS injection was possible in Mermaid diagrams via configuration directives\n\n## Affected\n\n- `YouTrack < 2026.2.19422`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":19,"depthScoreParts":{"impact":19.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}