4.9

CVE-2026-62947

Medienbericht
Exploit

OpenWrt: ACL bypass and arbitrary root file read via cgi-io cgi-download

OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, the cgi-download handler in cgi-io authorizes the requested path against the caller's ubus session file ACL before canonicalization, and rpcd session.c uses fnmatch() without FNM_PATHNAME, allowing traversal such as an allowed wildcard prefix followed by ../ to read root-readable files including /etc/shadow. This vulnerability is fixed in 25.12.5.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openwrt ≫ Openwrt Version < 25.12.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.327
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 4.9 1.2 3.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

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VulnDex Intel
Media Report
28.07.2026 15:52
https://github.com/openwrt/openwrt/releases/tag/v25.12.5
Release Notes
https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq
Vendor Advisory
Exploit
https://github.com/openwrt/cgi-io/pull/4
Patch
Issue Tracking
https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4
Patch