CVE-2026-47845Reactor Netty HTTP Server may incorrectly evaluate proxy addresses
Updated under an hour ago ()
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It affects Spring Reactor Netty and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-290
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- vmware
- NVD analysis
- Analyzed
- Record last updated
- Aug 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Spring Reactor Netty spring:reactor_netty (from the name) | from 1.3.0 through 1.3.6; from 1.1.0 through 1.2.18; through 1.0.52 | CNA record |
broadcom reactor_netty broadcom:reactor_netty | before 1.0.53; from 1.1.0 before 1.2.19; from 1.3.0 before 1.3.6.1 | NVD |
References
- https://spring.io/security/cve-2026-47845vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.