CVE-2026-48700
An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-48700- CVSS 4.0
- 9.3 Critical
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 - Weakness
- CWE-913
- Updated
- 2026-11-02
EUVDEUVD-2026-31487
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.
- Record
EUVD-2026-31487- CVSS 4.0
- 9.3 Critical
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j7mp-frq8-hwp3
An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's...
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.
- Record
GHSA-j7mp-frq8-hwp3- CVSS 4.0
- 9.3 Critical
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:I/V:D/RE:M/U:Clear - Weakness
- CWE-913
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-48700- CVSS 4.0
- 9.3 Critical
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:I/V:D/RE:M/U:Clear - Weakness
- CWE-913
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2026-48700- CVSS 4.0
- 9.3 Critical
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 - Weakness
- CWE-913
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-48700
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.
- Record
DEBIAN-CVE-2026-48700- CVSS 4.0
- 9.3 Critical
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:I/V:D/RE:M/U:Clear - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-48700
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.
- Record
UBUNTU-CVE-2026-48700- CVSS 4.0
- 9.3 Critical
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 - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pcmanfm-qtDebian:12 |
All versions, plus listed versions 1.2.1-11.3.0-11.3.0-21.3.0-31.4.0-1 Show 11 moreShow less1.4.0-21.4.0-32.0.0-12.0.0-1~exp12.1.0-12.1.0-22.2.0-12.2.0-1~exp12.3.0-12.3.0-1~exp12.4.0-1 |
None known |
pcmanfm-qtDebian:13 |
All versions, plus listed versions 2.1.0-22.2.0-12.2.0-1~exp12.3.0-12.3.0-1~exp12.4.0-1 |
None known |
pcmanfm-qtDebian:14 |
All versions, plus listed versions 2.1.0-22.2.0-12.2.0-1~exp12.3.0-12.3.0-1~exp12.4.0-1 |
None known |
pcmanfm-qtUbuntu:16.04:LTS |
All versions, plus listed versions 0.9.0+20150908-10.9.0+20150908-20.10.0-1ubuntu10.10.1-2 |
None known |
pcmanfm-qtUbuntu:18.04:LTS |
All versions, plus listed versions 0.11.3-40.12.0-10.12.0-20.12.0-30.12.0-40.12.0-5 |
None known |
pcmanfm-qtUbuntu:20.04:LTS |
All versions, plus listed versions 0.14.1-0ubuntu20.14.1-0ubuntu3 |
None known |
pcmanfm-qtUbuntu:22.04:LTS |
All versions, plus listed versions 0.17.0-0ubuntu1 |
None known |
pcmanfm-qtUbuntu:24.04:LTS |
All versions, plus listed versions 1.3.0-0ubuntu11.4.0-0ubuntu21.4.0-0ubuntu31.4.1-0ubuntu11.4.1-0ubuntu41.4.1-0ubuntu51.4.1-0ubuntu6 |
None known |
pcmanfm-qtUbuntu:25.10 |
All versions, plus listed versions 2.1.0-0ubuntu32.2.0-0ubuntu12.2.0-0ubuntu2 |
None known |
pcmanfm-qtUbuntu:26.10 |
All versions, plus listed versions 2.3.0-0ubuntu22.4.0-0ubuntu22.4.1-0ubuntu1 |
None known |
pcmanfm-qtUbuntu:26.04:LTS |
All versions, plus listed versions 2.2.0-0ubuntu22.2.0-0ubuntu32.3.0-0ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-48700 is a critical vulnerability (CVSS 9.3) in Lxqt Pcmanfm-qt, published May 22, 2026. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile.