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VulnerabilityPublished Updated

CVE-2026-30118: scalar · Server-Side Request Forgery (SSRF)

Affects scalarSource CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
GitHubprassan10/scalarpkg:github/prassan10/scalarOther threatsAffected
  • =0.1.13
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until an official fix is available, restrict access to the Scalar Proxy endpoint if possible and monitor for unusual outbound requests originating from the backend server. Avoid exposing the vulnerable version in untrusted environments.

Description

scalar/astro version 0.1.13 contains a Server-Side Request Forgery (SSRF) vulnerability in the scalar_url query parameter of the Scalar Proxy endpoint. This flaw allows unauthenticated attackers to make the backend server send HTTP requests to attacker-controlled URLs. Exploitation can lead to exposure of authentication cookies and headers, potentially enabling privilege escalation. The vulnerability has a critical severity with a CVSS score of 9.8. No patch or official remediation guidance is currently available, and no known exploits in the wild have been reported.

References

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