Threats Tagged 'cve-2026-77866'
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Threats Tagged 'cve-2026-77866'
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CVE-2026-77866 is a critical Server-Side Request Forgery (SSRF) vulnerability in the Slab safeurl library affecting all versions from 0.1.0 onward. The vulnerability arises because only IPv4 addresses are checked against reserved ranges and blocklists, while IPv6 addresses and hosts resolving without IPv4 addresses bypass these protections. This allows attackers controlling validated URLs to reach internal network destinations that should be blocked. Deployments using an allowlist are not affected by this issue. Join the discussion | CVE Database V5 | 09/15/2026, 15:38:15 UTC Added: 09/15/2026, 15:47:25 UTC |
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