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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/yuzutech/kroki/blob/v0.35.0/server/src/main/java/io/kroki/server/service/Goat.java#L61-L71 cve-icon
https://github.com/yuzutech/kroki/commit/a0a1435cc38eb7b258c555a883b7687424ad6784 cve-icon
https://github.com/yuzutech/kroki/releases/tag/v0.36.0 cve-icon
https://github.com/yuzutech/kroki/security/advisories/GHSA-xp94-px2v-f7f2 cve-icon
https://www.vulncheck.com/advisories/kroki-before-0.36.0-reflected-xss-via-goat-svg-color-scheme-options cve-icon
History

Sun, 15 Nov 2026 15:45:00 +0000

Type Values Removed Values Added
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.
Title Kroki before 0.36.0 Reflected XSS via /goat/svg Color Scheme Options
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-15T15:33:11.735Z

Reserved: 2026-11-15T13:51:17.973Z

Link: CVE-2026-129484

cve-icon Vulnrichment

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cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses