ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0, prior to zebra-chain version 7.0.0, and prior to zebra-network version 6.0.0, several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter protocol or consensus limits were enforced. An unauthenticated or post-handshake peer could therefore force the node to preallocate and parse for orders of magnitude more data than the protocol intended, across headers messages, equihash solutions in block headers, Sapling spend vectors in V5/V4 transactions, and coinbase script bytes in blocks. This issue has been patched in zebrad version 4.4.0, zebra-chain version 7.0.0, and zebra-network version 6.0.0.
References
| Link | Resource |
|---|---|
| https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-438q-jx8f-cccv | Exploit Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
08 May 2026, 18:01
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-438q-jx8f-cccv - Exploit, Vendor Advisory | |
| CPE | cpe:2.3:a:zfnd:zebrad:*:*:*:*:*:rust:*:* cpe:2.3:a:zfnd:zebra-chain:*:*:*:*:*:rust:*:* cpe:2.3:a:zfnd:zebra-network:*:*:*:*:*:rust:*:* |
|
| First Time |
Zfnd zebra-chain
Zfnd zebra-network Zfnd Zfnd zebrad |
08 May 2026, 15:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-08 15:17
Updated : 2026-05-08 18:01
NVD link : CVE-2026-44500
Mitre link : CVE-2026-44500
CVE.ORG link : CVE-2026-44500
JSON object : View
Products Affected
zfnd
- zebrad
- zebra-network
- zebra-chain
CWE
CWE-770
Allocation of Resources Without Limits or Throttling