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CVE-2026-30118

Critical

Description

scalar/astro v0.1.13 was discovered to contain a Server-Side Request Forgery (SSRF) in the scalar_url query parameter of the Scalar Proxy endpoint. This vulnerability allows unauthenticated attackers to force the backend server to send HTTP requests to attacker-controlled URLs, leading to authentication cookies and headers exposure and possible privilege escalation.

SeverityCritical
CVSS9.8
Exploit probability—
ProductScalar Astro
PublishedMay 19, 2026
First seenMay 19, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
scalar astro0.1.13—

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