CVE-2026-104431

HIGHCVSS 7.5

Zebra before 6.0.0 contains a denial of service vulnerability that allows unauthenticated peers to stall Tokio workers by submitting mempool transactions requiring expensive synchronous script verification. Attackers can send non-standard high-sigop P2SH transactions that reach CachedFfiTransaction::is_valid() before standardness checks, saturating the verifier buffer and rendering the node unresponsive.

Published 2026-10-02 · last modified 2026-10-02

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.