Threats Tagged 'ghsa-w8cc-xr9f-mrh7'
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Threats Tagged 'ghsa-w8cc-xr9f-mrh7'
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CVE-2026-71272: CWE-367 in usememos memosCVE-2026-71272 0 Memos' webhook dispatch function safeDialContext() (internal/webhook/webhook.go) resolves the target hostname via net.DefaultResolver.LookupHost() and validates the resulting IPs against reserved ranges, but then dials net.JoinHostPort(host, port) using the original hostname rather than the already-validated IP address. Because net.Dialer.DialContext() performs its own independent DNS resolution, an attacker controlling DNS for the webhook's hostname (e.g. via a short TTL) can return a public, allowed IP during validation and a different, internal IP at dial time — a classic time-of-check/time-of-use DNS-rebinding bypass of the SSRF protection. Join the discussion | CVE Database V5 | 08/05/2026, 15:32:20 UTC Added: 08/05/2026, 13:13:09 UTC |
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