Medium
Zebra 2.3.0 before 6.4.0 Peer Ban Bypass via Exact-IP Keying
Zebra 2.3.0 before 6.4.0 contains a protection mechanism failure that allows unauthenticated peers to evade bans because bans and misbehavior scores are keyed on exact IP addresses. Attackers can reconnect from fresh IPv6 addresses in their /64 allocation or flush the 20,000-entry FIFO ban list to restore access for banned peers.
Announced Source revision 1
Original source ↗CVE-2026-109364
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109364
zebra
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "ZcashFoundation",
"product": "zebra",
"versions": [
{
"status": "affected",
"version": "2.3.0",
"lessThan": "6.4.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.4.0",
"versionType": "semver"
}
],
"packageURL": "pkg:cargo/zebrad",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109364
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20494 · Revision 1
- Added to Heist Feed
- Publisher date