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Vulnerability record · CVE-2026-72841 · published 13 August 2026

CVE-2026-72841: luci-app-openvpn fails to properly validate the instance_name2 parameter during file upload, allowing authenti…

luci-app-openvpn fails to properly validate the instance_name2 parameter during file upload, allowing authenticated users to perform path traversal and write arbitrary files outside the intended directory. Attackers can upload malicious payloads to gain persistent root code execution by placing SSH keys in system directories accessible on reboot.

9.4 CVSS 4.0 Critical EPSS 0.62% · top 52.6% CWE-73 · CWE-73 Deferred
9.4CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
9 Sep 2026Last modified by NVD

Description

luci-app-openvpn fails to properly validate the instance_name2 parameter during file upload, allowing authenticated users to perform path traversal and write arbitrary files outside the intended directory. Attackers can upload malicious payloads to gain persistent root code execution by placing SSH keys in system directories accessible on reboot.

CVSS:4.0/AV:N/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:X/R:

References

LinkTags
https://github.com/openwrt/luci/security/advisories/GHSA-jjcx-c284-2qv8
https://www.vulncheck.com/advisories/luci-app-openvpn-path-traversal-rce-via-instance-name2
https://github.com/openwrt/luci/security/advisories/GHSA-jjcx-c284-2qv8

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Source: NIST National Vulnerability Database (record CVE-2026-72841), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.