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.
Metrics
Affected Vendors & Products
References
History
Mon, 29 Jun 2026 17:15:00 +0000
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Mon, 29 Jun 2026 14:30:00 +0000
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ssvc
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Mon, 29 Jun 2026 10:15:00 +0000
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| 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. | |
| Title | Yelp: yelp-xsl: overly permissive content security policy in yelp allows host file disclosure from flatpak applications | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
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| Weaknesses | CWE-693 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-06-29T18:44:24.447Z
Reserved: 2026-06-29T08:05:06.046Z
Link: CVE-2026-13601
Updated: 2026-06-29T13:26:43.482Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-29T20:05:27Z