Authentication Leak On Redirect With Reactor Netty HttpClient
Summary
| CVE | CVE-2020-5404 |
|---|---|
| State | PUBLISHED |
| Assigner | pivotal |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-03-03 18:15:12 UTC |
| Updated | 2026-09-04 18:59:12 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 5.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
EPSS: 0.006530000 probability, percentile 0.490090000 (date 2026-09-07)
Problem Types: CWE-522 | CWE-522 CWE-522: Insufficiently Protected Credentials
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
| 3.0 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N |
| 3.0 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N |
| 2.0 | [email protected] | Primary | 4.9 | AV:N/AC:M/Au:S/C:P/I:P/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
LowUser Interaction
RequiredScope
ChangedConfidentiality
HighIntegrity
LowAvailability
NoneCVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
SingleConfidentiality
PartialIntegrity
PartialAvailability
NoneAV:N/AC:M/Au:S/C:P/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Broadcom | Reactor Netty | All | All | All | All |
| Application | Broadcom | Reactor Netty | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Pivotal | Reactor Netty | affected 0.8 v0.8.16.RELEASE custom | Not specified |
| CNA | Pivotal | Reactor Netty | affected 0.9 v0.9.5.RELEASE custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| CVE-2020-5404: Authentication Leak On Redirect With Reactor Netty HttpClient | Security | VMware Tanzu | af854a3a-2127-422b-91ae-364da2661108 | pivotal.io | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.