Read the docs
TI-2026-35300 Aliases CVE-2026-47848GHSA-6p7h-426w-rcrx

Reactor Netty WebSocket Client Leaks Credentials On Redirect

Priority LOW 27CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
Low · Low · None
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-601.

Summary

In specific scenarios involving WebSocket handshake redirects to a different origin, the Reactor Netty WebSocket client may leak credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VMwareReactor Netty1.3.0 – 1.3.6; 1.1.0 – 1.2.18; up to 1.0.52—No fix listedCNA
  • Reactor Netty VendorVMware Affected 1.3.0 – 1.3.6; 1.1.0 – 1.2.18; up to 1.0.52 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:broadcom:reactor_netty:*:*:*:*:*:*:*:*before 1.0.53; 1.1.0 to before 1.2.19; 1.3.0 to before 1.3.6.1VulnerableBroadcom
  • cpe:2.3:a:broadcom:reactor_netty:*:*:*:*:*:*:*:* Versions before 1.0.53; 1.1.0 to before 1.2.19; 1.3.0 to before 1.3.6.1 Vulnerable ·Broadcom

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix planned: Out of support scope

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-47848
  2. 2026-10-03 Alias added: GHSA-6p7h-426w-rcrx
  3. 2026-11-06 Affected versions changed · Red Hat
  4. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

  • TI-2026-42442 vCenter directory-traversal vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26040 Privilege escalation in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26039 Heap-overflow in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-24610 Out-of-bounds write in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-16914 VMware vCenter Server Out-of-Bounds Write Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-07303 Command injection in Aria Operations for Networks KEVCVSS 3.1CRITICAL 9.8
See all 1181 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences