{"cve":"CVE-2026-53598","nvd":{"published":"2026-07-16T16:19:12.990","modified":"2026-10-24T20:10:00.137","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-22","CWE-200"],"references":["https://github.com/microsoft/prompty/commit/88ac9948d7d37995edbb2f6d36913436626c39e1","https://github.com/microsoft/prompty/security/advisories/GHSA-wxhm-2mq7-7697"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-53598","score":0.01286,"percentile":0.69946,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-wxhm-2mq7-7697","url":"https://osv.dev/vulnerability/GHSA-wxhm-2mq7-7697","summary":"Prompty: Arbitrary file read via file reference expansion","modified":"2026-07-31T05:15:34.159647264Z","packages":[{"ecosystem":"PyPI","name":"prompty","purl":"pkg:pypi/prompty","ranges":["<2.0.0b2"],"fixed":["2.0.0b2"]},{"ecosystem":"npm","name":"@prompty/core","purl":"pkg:npm/%40prompty/core","ranges":["<2.0.0-beta.2"],"fixed":["2.0.0-beta.2"]},{"ecosystem":"crates.io","name":"prompty","purl":"pkg:cargo/prompty","ranges":["<2.0.0-beta.2"],"fixed":["2.0.0-beta.2"]},{"ecosystem":"NuGet","name":"Prompty.Core","purl":"pkg:nuget/Prompty.Core","ranges":["<2.0.0-beta.2"],"fixed":["2.0.0-beta.2"]}]},{"id":"PYSEC-2026-3538","url":"https://osv.dev/vulnerability/PYSEC-2026-3538","summary":"Prompty: Arbitrary file read via file reference expansion","modified":"2026-07-23T15:00:23.757226070Z","packages":[{"ecosystem":"PyPI","name":"prompty","purl":"pkg:pypi/prompty","ranges":["<2.0.0b2"],"fixed":["2.0.0b2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}