Vulnerability in Spring Reactor Netty
CVE-2026-47844
In specific scenarios, the Reactor Netty HTTP Server may leak exception details across unrelated requests. In order for this to happen, the server must be configured with Brave Tracing. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
References
Frequently asked questions
- What is CVE-2026-47844?
- CVE-2026-47844 is a medium-severity vulnerability in Spring Reactor Netty, classified under CWE-668 EXPOSURE OF RESOURCE TO WRONG SPHERE. CVSS score: 5.3/10. Published 2026-08-26.
- How severe is CVE-2026-47844?
- Medium severity. CVSS v3 base score is 5.3 out of 10.