CVE-2026-30118

9.8 criticalEPSS 0.5%

Critical (9.8). EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2026-05-19
Modified: 2026-07-24
Record from: the NVD, synced 2026-10-19

References

https://github.com/prassan10/ssrf-zero-click-ato-scalar
https://github.com/prassan10/ssrf-zero-click-ato-scalar

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