Read the docs
TI-2020-04450 Aliases CVE-2020-5404GHSA-gpch-h32j-gx6x

Authentication Leak On Redirect With Reactor Netty HttpClient

Priority LOW 27CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-522.

Summary

The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.

Why it matters now

EPSS 0.00659 51st percentileScored 2026-11-07
Fix Fixed Reactor Netty (Pivotal): v0.8.16.RELEASE, v0.9.5.RELEASEio.projectreactor.netty:reactor-netty-http (Maven): 0.9.5, 0.8.16Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
PivotalReactor Netty0.8 to before v0.8.16.RELEASE; 0.9 to before v0.9.5.RELEASEv0.8.16.RELEASE, v0.9.5.RELEASEPatch availableCNA
—io.projectreactor.netty:reactor-netty-http (Maven)0.9.0 to before 0.9.50.9.5Patch availableGHSA-gpch-h32j-gx6x
—io.projectreactor.netty:reactor-netty-http (Maven)0.8.0 to before 0.8.160.8.16Patch availableGHSA-gpch-h32j-gx6x
  • Reactor Netty VendorPivotal Affected 0.8 to before v0.8.16.RELEASE; 0.9 to before v0.9.5.RELEASE Fixed in v0.8.16.RELEASE, v0.9.5.RELEASE Patch available CNA
  • io.projectreactor.netty:reactor-netty-http (Maven) Vendor— Affected 0.9.0 to before 0.9.5 Fixed in 0.9.5 Patch available GHSA-gpch-h32j-gx6x
  • io.projectreactor.netty:reactor-netty-http (Maven) Vendor— Affected 0.8.0 to before 0.8.16 Fixed in 0.8.16 Patch available GHSA-gpch-h32j-gx6x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:broadcom:reactor_netty:*:*:*:*:*:*:*:*0.8.0 – 0.8.15; 0.9.0 – 0.9.4VulnerableBroadcom
  • cpe:2.3:a:broadcom:reactor_netty:*:*:*:*:*:*:*:* Versions 0.8.0 – 0.8.15; 0.9.0 – 0.9.4 Vulnerable ·Broadcom

Remediation

  • Fix · CNA Reactor Netty (Pivotal) Fixed in v0.8.16.RELEASE, v0.9.5.RELEASE
  • Fix · GHSA-gpch-h32j-gx6x io.projectreactor.netty:reactor-netty-http (Maven) Fixed in 0.9.5 Advisory →
  • Fix · GHSA-gpch-h32j-gx6x io.projectreactor.netty:reactor-netty-http (Maven) Fixed in 0.8.16 Advisory →

Red Hat 1 advisory

  • RHSA-2022:8761 Released 2022-12-14 · Red Hat rating Moderate
    Red Hat support for Spring Boot 2.7.2 update
    • Text-Only RHOAR

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Text-Only RHOARFixed RHSA-2022:8761
Not affected: 1 product
  • Red Hat Integration Camel K 1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5404
  2. 2026-10-03 Alias added: GHSA-gpch-h32j-gx6x
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

References

Advisory 2

  • TI-2017-05637 Improper input validation in Pivotal Spring Data REST and Spring Boot CVSS 3.0CRITICAL 9.8
  • TI-2016-04299 When processing authorization requests using the whitelabel views in Spring Security… CVSS 3.0HIGH 8.8
  • TI-2018-01165 Code injection in Pivotal Spring Security OAuth CVSS 3.0CRITICAL 9.8
  • TI-2018-11237 DoS Attack via Range Requests CVSS 3.1HIGH 7.5
  • TI-2019-02791 Apps Manager unverified SSL certs in Cloud Controller proxy CVSS 3.0CRITICAL 9.8
  • TI-2018-11239 On Demand Services SDK Timing Attack Vulnerability CVSS 3.0CRITICAL 9.8
See all 85 →

Sources

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