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CVE-2026-62947

nvd nist
Published: Jul 15, 2026Modified: Jul 21, 2026

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4.9
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Exploitability: 1.2 / Impact: 3.6
Source: security-advisories@github.com (Secondary)

Description

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.

Affected (1)

Products: Openwrt: Openwrt
Openwrt
1 product
Openwrt
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Openwrt
Before 25.12.5

Related CWEs

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.

References (5)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Issue TrackingPatch
Source: security-advisories@github.com
Release Notes
Source: security-advisories@github.com
Vendor AdvisoryExploit
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Vendor AdvisoryExploit

Timeline

No history available yet.