Description
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.
Published: 2026-05-22
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 26 May 2026 13:45:00 +0000

Type Values Removed Values Added
References

Mon, 25 May 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Lxqt
Lxqt pcmanfm-qt
Vendors & Products Lxqt
Lxqt pcmanfm-qt

Fri, 22 May 2026 20:45:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via D‑Bus ShowFolders Call in PCManFM-Qt

Fri, 22 May 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 22 May 2026 19:15:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-913
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:N/R:I/V:D/RE:M/U:Clear'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-24T19:30:09.123Z

Reserved: 2026-05-22T18:43:05.097Z

Link: CVE-2026-48700

cve-icon Vulnrichment

Updated: 2026-05-24T19:30:09.123Z

cve-icon NVD

Status : Deferred

Published: 2026-05-22T19:17:04.623

Modified: 2026-06-17T10:55:13.093

Link: CVE-2026-48700

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-25T11:33:51Z

Weaknesses