{"schema":"threatline.record/2","record":{"id":"CVE-2026-104458","aliases":["GHSA-85f2-5r47-2pwm"],"summary":"YesWiki before 4.6.7 SSRF Guard Bypass via IPv6 Transition Addresses","details":"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.","categories":["Unclassified"],"product":"yeswiki","vendor":"YesWiki","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104458","source_modified_at":"2026-10-02T14:10:28.799Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"yeswiki","vendor":"YesWiki","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"4.6.7"},{"version":"4.6.7","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104458","source_modified_at":"2026-10-02T14:10:28.799Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"yeswiki","ecosystem":null},"version":"4.6.7","basis":"first unaffected version stated in the CVE record"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00317,"percentile":0.23436,"score_date":"2026-10-23"},"published_at":"2026-10-02T11:38:27.660Z","modified_at":"2026-10-02T14:10:28.799Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104458","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-02T14:10:28.799Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104458","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-85f2-5r47-2pwm","tags":["exploit"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-guard-bypass-via-ipv6-transition-addresses","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-02T14:09:39.309988Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-02T14:10:28.799Z","content_hash":"96604b696d239f759fbe5aa94aeb6d09321cacfe5ff24c196b38e5ccea1e0f20"}}