CVE-2026-62947
mediumpriority · track · 0EPSS 0.005 · 44 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4cnnvd
- https://github.com/openwrt/cgi-io/pull/4cnnvd
- https://github.com/openwrt/openwrt/releasesPatchcnnvd
- https://github.com/openwrt/openwrt/releases/tag/v25.12.5cnnvd
- https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcqcnnvd
- https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4enisa_euvd
- https://github.com/openwrt/cgi-io/pull/4enisa_euvd
- https://github.com/openwrt/openwrt/releases/tag/v25.12.5enisa_euvd
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