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CVE-2026-13601

Last refreshed2026-11-05

Status: UPDATED  |  Advisory ID: CVE-2026-13601

Key Details

CVECVE-2026-13601
CVSS Score / Version
7.1 (High) / CVSS v3.1
Updated2026-11-04
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS Prose
attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is none; availability impact is none.
Affected products
see table below
Classified as
CWE-693 (Protection Mechanism Failure)

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Red HatEnterprise Linux
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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. (NVD)

What to Do

Monitor Red Hat's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-13601
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-13601
Vendor advisoryhttps://access.redhat.com/security/cve/CVE-2026-13601
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