CVE-2026-123559: fallo de gravedad alta en ZcashFoundation zebra
Zebra before 7.0.0 Denial of Service via Quadratic Sighash Computation
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
18Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.7
Zebra before 7.0.0 contains an inefficient algorithmic complexity vulnerability that allows unauthenticated peers to exhaust verification threads by submitting transactions with many transparent inputs. Attackers can relay invalid transactions with tens of thousands of inputs, forcing quadratic ZIP-244 or ZIP-243 digest recomputation that stalls Rayon-backed block verification for minutes.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Productos afectados
ZcashFoundation · zebraCVEs relacionadas — ZcashFoundation zebra
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