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Scalar Astro CVE-2026-30117

| EUVD-2026-30944 CRITICAL
Code Injection (CWE-94)
2026-05-19 mitre GHSA-p2fw-q3jr-jfj3
RCE Code Injection File Upload N A
9.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
May 20, 2026 - 14:22 vuln.today
CVSS changed
May 20, 2026 - 14:22 NVD
9.8 (CRITICAL)
CVE Published
May 19, 2026 - 00:00 nvd
UNKNOWN (no severity yet)

DescriptionNVD

scalar/astro v0.1.13 was discovered to contain an arbitrary file upload vulnerability in the the scalar_url query parameter of the Scalar Proxy endpoint. This vulnerability allows attackers to execute arbitrary code via uploading a crafted SVG file.

AnalysisAI

Arbitrary code execution in Scalar Astro v0.1.13 allows remote unauthenticated attackers to upload malicious SVG files through the scalar_url query parameter of the Scalar Proxy endpoint. The flaw stems from inadequate validation in the proxy's file handling logic and, per CVSS, requires no authentication or user interaction, though EPSS rates real-world exploitation probability at only 0.02%. …

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RemediationAI

Within 24 hours: Inventory all systems running Scalar Astro v0.1.13 and assess network accessibility of the Scalar Proxy endpoint. Within 7 days: Deploy compensating controls (restrict scalar_url parameter, enforce SVG validation rules). …

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CVE-2026-30117 vulnerability details – vuln.today
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