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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-53598

Prompty: Arbitrary File Read via ${file:path} Reference Expansion

Description

Prompty is a markdown file format (.prompty) for LLM prompts. Prior to 2.0.0-beta.2, Prompty loaders expanded ${file:...} references in .prompty frontmatter without enforcing that resolved paths stayed within the prompt directory or allowed roots, allowing an attacker-controlled prompt file to read local files through absolute paths, .. traversal, or symlink escapes. This issue is fixed in versions 2.0.0-beta.2.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

microsoft prompty

  • < 2.0.0-beta.2affected

References