{"id":"CVE-2026-104458","published":"2026-10-02T12:17:17.813","lastModified":"2026-10-02T15:17:07.810","description":"YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl() that allows unauthenticated attackers to bypass the SSRF guard using 6to4, NAT64, or IPv4-compatible IPv6 addresses. Attackers can send a crafted Signature keyId to the public actor inbox route to reach cloud metadata, loopback services, or internal hosts.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-85f2-5r47-2pwm","tags":[]},{"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-guard-bypass-via-ipv6-transition-addresses","tags":[]},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-85f2-5r47-2pwm","tags":[]}],"exploitRefs":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-85f2-5r47-2pwm","tags":[]},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-85f2-5r47-2pwm","tags":[]}],"hasPoc":true,"ai":null}