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CVE-2026-129484

Kroki before 0.36.0 Reflected XSS via /goat/svg Color Scheme Options

  • Medium 6.1

Description

Kroki before 0.36.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts via unvalidated svg-color-dark-scheme and svg-color-light-scheme options. Attackers can craft a GET /goat/svg URL whose option value closes the SVG style element, executing JavaScript in the Kroki origin when victims open it.

Key facts

Published
15 Nov 2026
Last changed
15 Nov 2026
Assigned by
VulnCheck

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 5.3CVSS 4.0, Mediumfrom the CNA (VulnCheck)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
  • 6.1CVSS 3.1, Mediumfrom the CNA (VulnCheck)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
yuzutechkroki
  • Default status: unaffected
  • 0 up to but excluding 0.36.0 (affected)
  • 0.36.0 (unaffected)

Timeline

  1. 15 Nov 2026 Published

Weakness

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References