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CVE-2026-53597 Prompty: Arbitrary code execution via JavaScript frontmatter in TypeScript loader

🗓️ 16 Jul 2026 14:54:55Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Prompty loader executed arbitrary JavaScript from frontmatter due to default engines; fix in 2.0.0-beta.3.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-53597
16 Jul 202614:54
attackerkb
circl
Circl
CVE-2026-53597
16 Jul 202615:58
circl
cve
CVE
CVE-2026-53597
16 Jul 202614:54
cve
euvd
EUVD
EUVD-2026-44939
17 Jul 202619:53
euvd
github
Github Security Blog
Prompty: Arbitrary code execution via JavaScript frontmatter in TypeScript loader
17 Jul 202619:53
github
nvd
NVD
CVE-2026-53597
16 Jul 202616:19
nvd
osv
OSV
GHSA-C4GH-RV8H-Q9VW Prompty: Arbitrary code execution via JavaScript frontmatter in TypeScript loader
17 Jul 202619:53
osv
ptsecurity
Positive Technologies
PT-2026-60484
16 Jul 202600:00
ptsecurity
veracode
Veracode
Code Injection
18 Jul 202606:59
veracode
vulnrichment
Vulnrichment
CVE-2026-53597 Prompty: Arbitrary code execution via JavaScript frontmatter in TypeScript loader
16 Jul 202614:54
vulnrichment
Rows per page
[
  {
    "vendor": "microsoft",
    "product": "prompty",
    "versions": [
      {
        "version": ">= 2.0.0-alpha.1, < 2.0.0-beta.3",
        "status": "affected"
      }
    ]
  }
]

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16 Jul 2026 14:54Current
CVSS 48.7
EPSS0.00931
41