Bug 2480805 (CVE-2026-48700)

Summary: CVE-2026-48700 pcmanfm-qt: PCManFM-Qt: Arbitrary code execution via crafted URI
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in PCManFM-Qt. This vulnerability allows an attacker to achieve arbitrary code execution or bypass network security restrictions. This occurs when a specially crafted file path, provided as a Uniform Resource Identifier (URI) in a D-Bus method call, causes PCManFM-Qt to open the file with another program without user confirmation. This could lead to unauthorized access or system compromise.
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Bug Depends On: 2481425    
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Description OSIDB Bzimport 2026-05-22 20:01:37 UTC 
An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution or circumvent network namespace restrictions. NOTE: those outcomes are potentially unwanted by most users; however, the behavior of the product does comply with the applicable specification, and a simplistic solution (ensuring that the URI does not name a regular file) may have adverse consequences for I/O.