Reactor Netty authentication leak in redirects
Summary
| CVE | CVE-2019-11284 |
|---|---|
| State | PUBLISHED |
| Assigner | pivotal |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2019-10-17 18:15:12 UTC |
| Updated | 2026-09-04 18:59:12 UTC |
| Description | Pivotal Reactor Netty, versions prior to 0.8.11, passes headers through redirects, including authorization ones. A remote unauthenticated malicious user may gain access to credentials for a different server than they have access to. |
Risk And Classification
Primary CVSS: v3.1 8.6 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS: 0.008940000 probability, percentile 0.571910000 (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 | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 3.0 | [email protected] | Secondary | 6.8 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 3.0 | CNA | DECLARED | 6.8 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
PartialIntegrity
NoneAvailability
NoneAV:N/AC:L/Au:N/C:P/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Broadcom | Reactor Netty | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Pivotal | Reactor Netty | affected prior to v0.8.11.RELEASE | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| CVE-2019-11284: Reactor Netty authentication leak in redirects | 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.
Legacy QID Mappings
- 981639 Java (maven) Security Update for io.projectreactor.netty:reactor-netty (GHSA-j52r-xc68-q8f4)