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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-h9hm-m2xj-4rq9 | Zebra has Permanent Block Discovery Halt via Gossip Queue Saturation and Syncer Poisoning |
Sat, 09 May 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zcashfoundation
Zcashfoundation zebra |
|
| Vendors & Products |
Zcashfoundation
Zcashfoundation zebra |
Fri, 08 May 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 08 May 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, a composite denial-of-service vulnerability in Zebra's block discovery pipeline allows an unauthenticated remote attacker to permanently halt all new block discovery on a targeted node. The attack exploits three independent weaknesses in the gossip, syncer, and download subsystems — all exercisable from a single TCP connection — to create a monotonically growing block deficit that never self-heals. This issue has been patched in version 4.4.0. | |
| Title | ZEBRA: Permanent Block Discovery Halt via Gossip Queue Saturation and Syncer Poisoning | |
| Weaknesses | CWE-770 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-08T17:23:27.910Z
Reserved: 2026-05-06T18:28:20.886Z
Link: CVE-2026-44499
Updated: 2026-05-08T17:23:24.967Z
Status : Deferred
Published: 2026-05-08T16:16:13.117
Modified: 2026-05-12T16:45:18.893
Link: CVE-2026-44499
No data.
OpenCVE Enrichment
Updated: 2026-05-08T23:45:20Z
Github GHSA