---
id: "CVE-2026-129447"
page: "https://infrastack.ai/live/CVE-2026-129447"
kind: "vulnerability"
aliases: ["CVE-2026-129447"]
title: "Kroki: reflected XSS in /dbml/svg lets crafted links run script"
severity: "medium"
cvss: 6.1
epss: null
exploited: false
status: "open"
category: "other"
products: [{"name": "kroki", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["dbml", "kroki", "other", "self-hosted"]
not_affected_if: ["kroki-at-0.36.0-or-later", "no-dbml-rendering"]
published_at: "2026-11-14T18:17:21+00:00"
first_seen_at: "2026-11-14T18:31:01+00:00"
updated_at: "2026-11-14T18:32:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-129447", "first_seen_at": "2026-11-14T18:31:01+00:00"}]
exploit_sources: []
---

# Kroki: reflected XSS in /dbml/svg lets crafted links run script

Link for people: https://infrastack.ai/live/CVE-2026-129447 (this .md is for agents)

Kroki before 0.36.0 reflects DBML table url, headercolor, and TableGroup color values into SVG output on the /dbml/svg endpoint without proper sanitization. A victim who opens a crafted SVG link and clicks a table header runs attacker JavaScript in the Kroki origin.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:kroki affected range not listed fixed no fixed version listed

## How to check

- Check the running Kroki version; it is affected if below `0.36.0`.
- Find out whether your Kroki instance is reachable from the internet or other untrusted users.

## Fix

- Kroki: upgrade to `0.36.0` or later.

## Timeline

- 2026-11-14T18:31:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-129447

## Documents

- [advisory] Vendor advisory: github.com https://github.com/yuzutech/kroki/security/advisories/GHSA-fr36-wcx2-7gfq
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/kroki-before-0.36.0-reflected-xss-via-dbml-table-urls
- [fix] Patch: github.com https://github.com/yuzutech/kroki/commit/b57e1bdc39df9521b249db0dbd56c5e0a8b7e33d
- [fix] Release notes: github.com https://github.com/yuzutech/kroki/releases/tag/v0.36.0

## From the sources

Kroki before 0.36.0 contains a reflected cross-site scripting vulnerability in the /dbml/svg endpoint that allows unauthenticated attackers to inject javascript: hyperlinks by supplying crafted DBML table url, headercolor, or TableGroup color settings. Attackers can send a crafted SVG link that, when opened and the table header clicked, executes attacker JavaScript in the Kroki origin.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_