medium5.3
CVE-2026-104432
Zebra before 6.3.0 contains an improper exceptional condition check in ChainSync::obtain_tips that discards valid one-hash FindBlocks responses, falsely report…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Zebra | before 6.3.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.