Cross-site Scripting (XSS) Affecting langfuse-3 package, versions <3.163.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-WOLFILATEST-LANGFUSE3-15951885
  • published9 Apr 2026
  • disclosed20 Feb 2026

Introduced: 20 Feb 2026

CVE-2026-27122  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Wolfi langfuse-3 to version 3.163.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream langfuse-3 package and not the langfuse-3 package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

svelte performance oriented web framework. Prior to 5.51.5, when using <svelte:element this={tag}> in server-side rendering, the provided tag name is not validated or sanitized before being emitted into the HTML output. If the tag string contains unexpected characters, it can result in HTML injection in the SSR output. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5.

CVSS Base Scores

version 3.1