CVE-2026-1528: falha de alta gravidade em undici
undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 0.6%
ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process.
Patches
Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
undici · undiciCVEs relacionadas — undici
No mesmo produto, das mais perigosas para as menos.
CVE-2026-1526HIGHundici is vulnerable to Unbounded Memory Consumption in undici WebSocket permessage-deflate DecompressionEPSS 1.3%CVE-2026-2229HIGHundici is vulnerable to Unhandled Exception in undici WebSocket Client Due to Invalid server_max_window_bits ValidationEPSS 1.0%CVE-2026-12151HIGHundici WebSocket client vulnerable to denial of service via fragment count bypassEPSS 0.8%CVE-2026-2581MEDIUMundici is vulnerable to Unbounded Memory Consumption in in Undici's DeduplicationHandler via Response Buffering leads to DoSEPSS 0.6%CVE-2026-13697HIGHundici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directivesEPSS 0.6%CVE-2026-1525MEDIUMundici is vulnerable to Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')EPSS 0.6%
Referências
https://access.redhat.com/errata/RHSA-2026:13826https://access.redhat.com/errata/RHSA-2026:17789https://access.redhat.com/errata/RHSA-2026:21772https://access.redhat.com/errata/RHSA-2026:21931https://access.redhat.com/errata/RHSA-2026:34342https://access.redhat.com/errata/RHSA-2026:5807https://access.redhat.com/errata/RHSA-2026:7080https://access.redhat.com/errata/RHSA-2026:7123https://access.redhat.com/errata/RHSA-2026:7302https://access.redhat.com/errata/RHSA-2026:7310https://access.redhat.com/errata/RHSA-2026:7350https://access.redhat.com/errata/RHSA-2026:7670