CVE-2026-53598

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{"affected": [{"affectedData": [{"product": "prompty", "vendor": "microsoft", "versions": [{"status": "affected", "version": "< 2.0.0-beta.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Prompty es un formato de archivo markdown (.prompty) para prompts de LLM. Antes de la versi\u00f3n 2.0.0-beta.2, los cargadores de Prompty expand\u00edan las referencias ${file:...} en el \u2019frontmatter\u2019 de .prompty sin asegurar que las rutas resueltas permanecieran dentro del directorio del prompt o de las ra\u00edces permitidas, permitiendo que un archivo de prompt controlado por un atacante leyera archivos locales a trav\u00e9s de rutas absolutas, el recorrido de directorios con \u2019..\u2019 o escapes de enlaces simb\u00f3licos. Este problema est\u00e1 solucionado en las versiones 2.0.0-beta.2."}], "id": "CVE-2026-53598", "lastModified": "2026-10-24T20:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53598", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-17T14:06:30.453913Z", "version": "2.0.3"}}]}, "published": "2026-07-16T16:19:12.990", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/microsoft/prompty/commit/88ac9948d7d37995edbb2f6d36913436626c39e1"}, {"source": "security-advisories@github.com", "url": "https://github.com/microsoft/prompty/security/advisories/GHSA-wxhm-2mq7-7697"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-200"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.0.0-beta.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "prompty", "vendor": "microsoft"}], "created": "2026-07-17T16:15:16.407392+00:00", "updated": "2026-07-31T02:00:05.500683+00:00", "vendors": ["microsoft", "microsoft$PRODUCT$prompty"]}