CVE-2026-13601
Full vulnerability record from the local CVENow database.
Description
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.
Severity
MEDIUM
CVSS score
6.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-06-29 10:16:30.180000
Last modified
2026-11-04 22:17:58.300000
View original CVE JSON
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"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"tags": [
"Vendor Advisory"
]
}
]
}