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CVE-2026-104424

Zebra before 6.1.0 Incorrect Block Size Calculation in getblocktemplate PUBLISHED

Description (CNA)

Zebra before 6.1.0 contains an incorrect calculation vulnerability in its ZIP-317 block template selector that omits header and transaction-count size from the block budget. Attackers can place valid selectable transactions in a victim miner's mempool to shape templates into oversized blocks, causing rejection and wasted proof-of-work.

Affected (CNA)

Vendor / productVersions
ZcashFoundation / zebraaffected 0 before 6.1.0; unaffected 6.1.0

CWE

CWE-131

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.