CVE-2026-40881

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-network version 5.0.1, when deserializing addr or addrv2 messages, which contain vectors of addresses, Zebra would fully deserialize them up to a maximum length over 233,000 that was derived from the 2 MiB...

CVE-2026-40881: Allocation of Resources Without Limits or Throttling

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-network version 5.0.1, when deserializing addr or addrv2 messages, which contain vectors of addresses, Zebra would fully deserialize them up to a maximum length over 233,000 that was derived from the 2 MiB...

Zebra: addr/addrv2 Deserialization Resource Exhaustion

CVE-2026-40881: addr/addrv2 Deserialization Resource Exhaustion Summary When deserializing addr or addrv2 messages, which contain vectors of addresses, Zebra would fully deserialize them up to a maximum length over 233,000 that was derived from the 2 MiB message size limit. This is much larger th...