{"id":"CVE-2026-118376","published":"2026-10-28T03:17:14.230","lastModified":"2026-10-28T03:17:14.360","description":"WeKnora before 0.8.2 contains a server-side request forgery vulnerability in isRestrictedIP() that misclassifies NAT64-prefixed IPv6 addresses as public. Authenticated attackers can supply URLs resolving to NAT64 encodings of internal addresses via web_fetch or URL-based knowledge import to reach internal services or cloud metadata endpoints.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Tencent/WeKnora","tags":[]},{"url":"https://github.com/Tencent/WeKnora/blob/3d5d8bfcdfeeea266b292b71cea616847af28d0f/internal/utils/security.go#L267-L327","tags":[]},{"url":"https://github.com/Tencent/WeKnora/commit/d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1dda","tags":[]},{"url":"https://github.com/Tencent/WeKnora/commit/ff818b681f10bc29edbc48fe35f00009dc276bfa","tags":[]},{"url":"https://github.com/Tencent/WeKnora/issues/4092","tags":[]},{"url":"https://github.com/Tencent/WeKnora/releases/tag/v0.8.2","tags":[]},{"url":"https://www.vulncheck.com/advisories/weknora-before-0.8.2-ssrf-guard-bypass-via-nat64-ipv6-addresses","tags":[]}],"exploitRefs":[{"url":"https://github.com/Tencent/WeKnora","tags":[]},{"url":"https://github.com/Tencent/WeKnora/blob/3d5d8bfcdfeeea266b292b71cea616847af28d0f/internal/utils/security.go#L267-L327","tags":[]},{"url":"https://github.com/Tencent/WeKnora/commit/d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1dda","tags":[]},{"url":"https://github.com/Tencent/WeKnora/commit/ff818b681f10bc29edbc48fe35f00009dc276bfa","tags":[]},{"url":"https://github.com/Tencent/WeKnora/issues/4092","tags":[]},{"url":"https://github.com/Tencent/WeKnora/releases/tag/v0.8.2","tags":[]}],"hasPoc":true,"ai":null}