CVE-2026-62947

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.

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Produits concernés

• openwrt
• Openwrt openwrt

Scores CVSS

Faiblesses (CWE)

• CWE-22

Références

• https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4 Patch
• https://github.com/openwrt/cgi-io/pull/4 Issue TrackingPatch
• https://github.com/openwrt/openwrt/releases/tag/v25.12.5 Release Notes
• https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq Vendor AdvisoryExploit
• https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq Vendor AdvisoryExploit

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories