Zebra before 6.1.0 contains an inefficient algorithmic complexity vulnerability in remaining_transaction_value that clones the entire block-level spent-UTXO map per transaction during contextual verification. Attackers can mine or seed the mempool with roughly 26,000 minimal single-input transactions in one block, stalling every validating node for over 52 seconds.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Fri, 02 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Zebra before 6.1.0 contains an inefficient algorithmic complexity vulnerability in remaining_transaction_value that clones the entire block-level spent-UTXO map per transaction during contextual verification. Attackers can mine or seed the mempool with roughly 26,000 minimal single-input transactions in one block, stalling every validating node for over 52 seconds. | |
| Title | Zebra before 6.1.0 Quadratic Complexity DoS via Block Transparent Value Check | |
| First Time appeared |
Zfnd
Zfnd zebra |
|
| Weaknesses | CWE-407 | |
| CPEs | cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Zfnd
Zfnd zebra |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-02T11:38:07.187Z
Reserved: 2026-10-02T00:46:23.830Z
Link: CVE-2026-104426
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses