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    CVE-2026-62947

    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.

    Published:Jul 15, 2026
    Last Modified:Jul 15, 2026
    EPS:Jul 15, 2026
    EPSS Score:
    CVSS Score:4.9

    Affected Products

    Vendor
    Openwrt
    Product
    Openwrt

    Exploits

    https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcqhttps://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq

    Related CVEs

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High