Zebra: Cached Mempool Verification Bypasses Consensus Rules for Ahead-of-Tip Blocks

CVE-2026-40880: Cached Mempool Verification Bypasses Consensus Rules for Ahead-of-Tip Blocks Summary A logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By carefully submitting a transaction that is valid for height H+1 but invalid fo...

GHSA-3VMH-33XR-9CQH Zebra has a Consensus Failure due to Improper Verification of V5 Transactions

--- CVE-2026-34377: Consensus Failure via Crafted V5 Authorization Data Summary A logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, a miner could cause...

Lodestar snappy checksum issue

Impact Unintended permanent chain split affecting greater than or equal to 25% of the network, requiring hard fork network partition requiring hard fork Lodestar does not verify checksum in snappy framing uncompressed chunks. Vulnerability Details In Req/Resp protocol the messages are encoded by...

GHSA-53RV-HCVM-RPP9 Lodestar snappy decompression issue

Impact Unintended permanent chain split affecting greater than or equal to 25% of the network, requiring hard fork network partition requiring hard fork Description Lodestar client may fail to decode snappy framing compressed messages. Vulnerability Details In Req/Resp protocol the message are...

Lodestar snappy decompression issue

Impact Unintended permanent chain split affecting greater than or equal to 25% of the network, requiring hard fork network partition requiring hard fork Description Lodestar client may fail to decode snappy framing compressed messages. Vulnerability Details In Req/Resp protocol the message are...