CVE-2026-47843
Reactor Netty may incorrectly route traffic due to DNS resolver reuse
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
In specific scenarios involving multiple clients with different DNS resolver configurations, Reactor Netty may incorrectly reuse a previously configured DNS resolver. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
| Vendor | spring |
| Product | reactor netty |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Aug 26, 2026 |
| Last Updated | Aug 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
Spring / Reactor Netty
1.3.0 ≤ 1.3.6 1.1.0 ≤ 1.2.18 0 ≤ 1.0.52