low3.7
CVE-2026-109365
Zebra before 6.4.0 contains an uncontrolled resource consumption vulnerability that allows unauthenticated peers to force full proof verification by serving fo…
Impact
Zebra before 6.4.0 contains an uncontrolled resource consumption vulnerability that allows unauthenticated peers to force full proof verification by serving forged block bodies with valid header hashes. Attackers can flip authorizing-only bytes such as a coinbase scriptSig, wasting Sapling, Orchard, and Ironwood proof verification without penalty and stalling sync for 67 seconds.
Affected products
| Product | Affected versions |
|---|---|
| Zebra | before 6.4.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.