CVE-2026-104432

MediumCVSS 5.3/10Last modified Oct 6, 2026

Description

Zebra before 6.3.0 contains an improper exceptional condition check in ChainSync::obtain_tips that discards valid one-hash FindBlocks responses, falsely reporting close-to-tip status. Peers returning only the next block hash cause a zero-length sync sample, making the /ready endpoint return 200 OK while the node remains behind the tip.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-754

Affected software

No affected versions have been published.

Timeline

Published: Oct 2, 2026
Last modified: Oct 6, 2026
NVD status: Deferred

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