Skip to content
CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-123560

Zebra before 7.0.0 Sync Denial of Service via Forged Checkpoint Block Body

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Zebra before 7.0.0 contains an incomplete cleanup vulnerability that allows unauthenticated peers to stall initial sync by serving a forged checkpoint block body. Attackers can supply a body with forged authorizing data near the final checkpoint, leaving rejected hashes in the sent-hash set so the node stops requesting blocks until restart.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ZcashFoundation zebra

Default version status: unaffected

  • 0 to < 7.0.0affected
  • 7.0.0unaffected
pkg:cargo/zebrad

References