High severity7.5NVD Advisory· Published Jul 16, 2026· Updated Jul 17, 2026
CVE-2026-53598
CVE-2026-53598
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
promptyPyPI | < 2.0.0b2 | 2.0.0b2 |
@prompty/corenpm | < 2.0.0-beta.2 | 2.0.0-beta.2 |
promptycrates.io | < 2.0.0-beta.2 | 2.0.0-beta.2 |
Prompty.CoreNuGet | < 2.0.0-beta.2 | 2.0.0-beta.2 |
Affected products
1Patches
Vulnerability mechanics
References
4News mentions
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