CVE-2026-30117
An arbitrary file upload flaw exists in scalar/astro v0.1.13, where the scalar_url query parameter of the Scalar Proxy endpoint accepts any file. Attackers can upload a specially crafted SVG file that is executed on the server, giving them full control over the system.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
scalar/astro version 0.1.13, used by developers who deploy the Scalar Proxy endpoint.
Real-world impact
An attacker who can upload files to the vulnerable endpoint can run arbitrary code on the server, potentially taking over the system, stealing data, or disrupting services.
Why this severity
The CVSS score of 9.8 reflects that the flaw can be exploited over the network with no authentication or user interaction, and it grants complete compromise of confidentiality, integrity, and availability.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- May 19, 2026 · May 19, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 24, 2026 · 12d agoAdvisory updatedThe NVD record was last revised.