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Protection Mechanism Failure The advisory has been revoked - it doesn't affect any version of package yelp  (opens in a new tab)

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EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-UBUNTU2510-YELP-17740467
  • published3 Jul 2026
  • disclosed29 Jun 2026
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Introduced: 29 Jun 2026

CVE-2026-13601  (opens in a new tab)
CWE-693  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:25.10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream yelp package and not the yelp package as distributed by Ubuntu.

A flaw was found in Yelp due to an overly permissive Content Security Policy (CSP) implementation provided by yelp-xsl. A malicious Flatpak application can open crafted help content through the OpenURI portal. By embedding an untrusted CSS stylesheet within a structured SVG document, attacker-controlled content can bypass Flatpak's intended sandbox isolation, allowing Yelp to evaluate local XML inclusions and disclose arbitrary user-readable host files through remote CSS resource requests. This may result in the unauthorized disclosure of sensitive information.

References