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.
Metrics
Affected Vendors & Products
References
History
Tue, 06 Oct 2026 03:30:00 +0000
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| Metrics |
ssvc
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Fri, 02 Oct 2026 16:00:00 +0000
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| First Time appeared |
Zcashfoundation
Zcashfoundation zebra |
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| Vendors & Products |
Zcashfoundation
Zcashfoundation zebra |
Fri, 02 Oct 2026 11:45:00 +0000
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| Description | 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. | |
| Title | Zebra before 6.1.0 Incorrect Block Size Calculation in getblocktemplate | |
| First Time appeared |
Zfnd
Zfnd zebra |
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| Weaknesses | CWE-131 | |
| CPEs | cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Zfnd
Zfnd zebra |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-02T11:38:05.827Z
Updated: 2026-10-06T02:38:24.183Z
Reserved: 2026-10-02T00:46:23.830Z
Link: CVE-2026-104424
Updated: 2026-10-06T02:38:18.883Z
Status : Deferred
Published: 2026-10-02T12:17:12.580
Modified: 2026-10-06T03:17:00.217
Link: CVE-2026-104424
No data.