Threats Tagged 'cve-2026-43972'
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Threats Tagged 'cve-2026-43972'
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CVE-2026-43972 is an origin validation error vulnerability in the ninenines gun HTTP/2 module (gun_http2). It allows a malicious or compromised HTTP/2 server to inject cookies scoped to arbitrary third-party domains into the client's cookie store via unvalidated PUSH_PROMISE authority headers. This violates HTTP/2 protocol requirements and can enable session fixation and potential account takeover without user interaction. The issue affects gun versions from 2.0.0 up to but not including 2.4.0. Join the discussion | CVE Database V5 | 06/08/2026, 14:12:38 UTC Added: 06/08/2026, 14:33:53 UTC |
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