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OpenAdvisories
High ALAS2-2026-3821 1 CVE

Important: yelp security update (Amazon Linux 2)

Published Jul 20, 2026 · Updated Jul 20, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-13601: 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.

Fixed packages 4

ReleasePackageFixed in
Amazon Linux · 2 yelp 2:3.28.1-1.amzn2.0.2
Amazon Linux · 2 yelp-debuginfo 2:3.28.1-1.amzn2.0.2
Amazon Linux · 2 yelp-devel 2:3.28.1-1.amzn2.0.2
Amazon Linux · 2 yelp-libs 2:3.28.1-1.amzn2.0.2

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-13601.html