CVE-2026-53597
microsoft prompty 취약점
Prompty is a markdown file format (.prompty) for LLM prompts. From 2.0.0-alpha.1 until 2.0.0-beta.3, the @prompty/core TypeScript loader in runtime/typescript/packages/core/src/core/loader.ts used gray-matter without overriding executable js and javascript frontmatter engines, allowing an attacker-controlled .prompty file with ---js frontmatter to execute arbitrary JavaScript during prompt loading. This issue is fixed in version 2.0.0-beta.3.
- 대응 우선순위
- 점검
- CVSS
- 8.7
- EPSS
- 0.93% 백분위 57.1% · 2026.07.29 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.07.17