CVE-2026-104432
Zebra before 6.3.0 contains an improper exceptional condition check in ChainSync::obtain_tips that discards valid one-hash FindBlocks respon
CVSS
5.3
Medium
EPSS
0.3%
p23
KEV
—
Exploit Today
7
0-100
Published: Oct 2, 2026 · Last modified: Oct 6, 2026 · CWE-754
0.3%EPSS · 30 days0.3%
2026-10-032026-10-25
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.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-1153856.2 MED1.4%
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