CVE-2026-104427 (GCVE-0-2026-104427)
Vulnerability from cvelistv5 – Published: 2026-10-02 11:38 – Updated: 2026-10-05 14:53
VLAI
EPSS
VEX
Title
Zebra before 6.1.0 Chain Stall via Stale parent_error_map Entry
Summary
Zebra before 6.1.0 contains an incomplete cleanup vulnerability in the state write task that allows remote unauthenticated peers to stall node synchronization by poisoning parent_error_map. Attackers can deliver a coinbase-malleated block sharing a canonical block's hash before it propagates, causing the next canonical block to be rejected and stalling the node for roughly 2,000 blocks.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 14:53 UTC
CWE
- CWE-459 - Incomplete Cleanup
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/zebra-before… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
0 , < 6.1.0
(semver)
Unaffected: 6.1.0 (semver) cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* |
Date Public
2026-07-17 00:00
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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