Threats Tagged 'ghsa-jjh5-p3gc-84xr'
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Threats Tagged 'ghsa-jjh5-p3gc-84xr'
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CVE-2026-71271: CWE-918 in usememos memosCVE-2026-71271 0 Memos' webhook URL validation, isReservedIP() (internal/webhook/validate.go), checks a candidate IP against a reservedCIDRs list that omits 0.0.0.0/8 and never calls ip.IsUnspecified() — unlike the correctly implemented sibling function isInternalIP() in internal/httpgetter/html_meta.go, which does. Because Linux redirects connections to 0.0.0.0 to loopback (127.0.0.1), an attacker registering a webhook URL of http://0.0.0.0:PORT/ bypasses the reserved-IP check and causes the Memos server to make outbound HTTP requests to its own loopback interface, exposing internal-only services. Join the discussion | CVE Database V5 | 08/05/2026, 15:32:20 UTC Added: 08/05/2026, 13:13:08 UTC |
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