Sensitive headers not cleared on cross-origin redirect in net/http
Priority LOW 31Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 9 fixed, 61 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00669 52nd percentileScored 2026-11-07
Fix Partial net/http (Go standard library): 1.23.10, 1.24.4Red Hat: 11 advisoriesRed Hat: 9 fixed, 61 without a fix
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Go standard library | net/http | before 1.23.10; 1.24.0-0 to before 1.24.4 | 1.23.10, 1.24.4 | Patch available | CNA |
- net/http VendorGo standard library Affected before 1.23.10; 1.24.0-0 to before 1.24.4 Fixed in 1.23.10, 1.24.4 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* | — | — | Go standard library |
- cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* Versions — — ·Go standard library
Remediation
- Fix · CNA net/http (Go standard library) Fixed in 1.23.10, 1.24.4
Red Hat 11 advisories
- RHSA-2026:87245 Released 2026-10-21 · Red Hat rating Importantgo-toolset:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) delve-1.26.1-1.module+el8.8.0+24781+86ad105d.ppc64le::go-toolset:rhel8, delve-1.26.1-1.module+el8.8.0+24781+86ad105d.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.8.0+24781+86ad105d.x86_64::go-toolset:rhel8 +13
- Red Hat Enterprise Linux AppStream TUS (v.8.8) delve-1.26.1-1.module+el8.8.0+24781+86ad105d.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.8.0+24781+86ad105d.x86_64::go-toolset:rhel8, go-toolset-1.26.10-4.module+el8.8.0+25113+a148ecc0.x86_64::go-toolset:rhel8 +8
- RHSA-2026:87246 Released 2026-10-21 · Red Hat rating Importantgo-toolset:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) delve-1.26.1-1.module+el8.6.0+24782+a062e766.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8, go-toolset-1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 +8
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) delve-1.26.1-1.module+el8.6.0+24782+a062e766.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8, go-toolset-1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 +8
- RHSA-2026:19350 Released 2026-05-19 · Red Hat rating Importantgit-lfs security update
- Red Hat Enterprise Linux AppStream (v. 9) git-lfs-3.7.1-4.el9_8
Show 8 more Red Hat advisories
- RHSA-2025:16432 Released 2025-09-23 · Red Hat rating Moderateopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream (v. 10) opentelemetry-collector-0.127.0-3.el10_0
- RHSA-2025:15887 Released 2025-09-16 · Red Hat rating Moderateopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream (v. 9) opentelemetry-collector-0.127.0-2.el9_6
- RHSA-2025:15406 Released 2025-09-08 · Red Hat rating Moderateopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) opentelemetry-collector-0.127.0-2.el9_4
- RHSA-2025:10823 Released 2025-07-10 · Red Hat rating ImportantRed Hat build of Tempo 3.6.1 release
- Red Hat OpenShift distributed tracing 3.6.0 registry.redhat.io/rhosdt/tempo-gateway-opa-rhel8, registry.redhat.io/rhosdt/tempo-gateway-rhel8, registry.redhat.io/rhosdt/tempo-jaeger-query-rhel8 +3
- RHSA-2025:10735 Released 2025-07-09 · Red Hat rating ImportantRed Hat build of OpenTelemetry 3.6.1 release
- Red Hat OpenShift distributed tracing 3.6.0 registry.redhat.io/rhosdt/opentelemetry-collector-rhel8, registry.redhat.io/rhosdt/opentelemetry-rhel8-operator, registry.redhat.io/rhosdt/opentelemetry-target-allocator-rhel8
- RHSA-2025:10672 Released 2025-07-09 · Red Hat rating Moderatego-toolset:rhel8 security update
- Red Hat Enterprise Linux AppStream (v. 8) delve-1.24.1-1.module+el8.10.0+22945+b2c96a17.aarch64::go-toolset:rhel8, delve-1.24.1-1.module+el8.10.0+22945+b2c96a17.ppc64le::go-toolset:rhel8, delve-1.24.1-1.module+el8.10.0+22945+b2c96a17.src::go-toolset:rhel8 +19
- RHSA-2025:10676 Released 2025-07-09 · Red Hat rating Moderategolang security update
- Red Hat Enterprise Linux AppStream (v. 9) go-toolset-1.24.4-1.el9_6, golang-1.24.4-1.el9_6, golang-bin-1.24.4-1.el9_6 +5
- RHSA-2025:10677 Released 2025-07-09 · Red Hat rating Moderategolang security update
- Red Hat Enterprise Linux AppStream (v. 10) go-toolset-1.24.4-1.el10_0, golang-1.24.4-1.el10_0, golang-bin-1.24.4-1.el10_0 +5
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Cryostat 4 | Affected | No fix yet: Fix deferred |
| Custom Metric Autoscaler operator for Red Hat Openshift | Affected | No fix yet: Fix deferred |
| Deployment Validation Operator | Affected | No fix yet: Fix deferred |
| Fence Agents Remediation Operator | Affected | No fix yet: Fix deferred |
| Gatekeeper 3 | Affected | No fix yet: Fix deferred |
| Kube Descheduler Operator | Affected | No fix yet: Fix deferred |
| Logging Subsystem for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Logical Volume Manager Storage | Affected | No fix yet: Fix deferred |
| Machine Deletion Remediation Operator | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Applications 7 | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Containers | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Virtualization | Affected | No fix yet: Fix deferred |
| Multicluster Engine for Kubernetes | Affected | No fix yet: Fix deferred |
| Multicluster Global Hub | Affected | No fix yet: Fix deferred |
| Node HealthCheck Operator | Affected | No fix yet: Fix deferred |
| Node Maintenance Operator | Affected | No fix yet: Fix deferred |
| OpenShift API for Data Protection | Affected | No fix yet: Fix deferred |
| OpenShift Developer Tools and Services | Affected | No fix yet: Fix deferred |
| OpenShift Pipelines | Affected | No fix yet: Fix deferred |
| OpenShift Run Once Duration Override Operator | Affected | No fix yet: Fix deferred |
| OpenShift Secondary Scheduler Operator | Affected | No fix yet: Fix deferred |
| OpenShift Serverless | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 2 | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 3 | Affected | No fix yet: Fix deferred |
| Power monitoring for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Red Hat 3scale API Management Platform 2 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Security 4 | Affected | No fix yet: Fix deferred |
| Red Hat Ansible Automation Platform 2 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 5 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 6 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 7 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 8 | Affected | No fix yet: Fix deferred |
| Red Hat Certification Program for Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Certification for Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Connectivity Link 1 | Affected | No fix yet: Fix deferred |
| Red Hat Edge Manager preview | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AI (RHEL AI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift GitOps | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Update Service | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Virtualization 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift on AWS | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 16.2 | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 17.1 | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 18.0 | Affected | No fix yet: Fix deferred |
| Red Hat Openshift Data Foundation 4 | Affected | No fix yet: Fix deferred |
| Red Hat Openshift Sandboxed Containers | Affected | No fix yet: Fix deferred |
| Red Hat Quay 3 | Affected | No fix yet: Fix deferred |
| Red Hat Satellite 6 | Affected | No fix yet: Fix deferred |
| Red Hat Service Interconnect 2 | Affected | No fix yet: Fix deferred |
| Red Hat Web Terminal | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
| Self Node Remediation Operator | Affected | No fix yet: Fix deferred |
| Service Telemetry Framework 1.5 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2025:10677, RHSA-2025:16432 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:10672 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:10676, RHSA-2025:15887, RHSA-2026:19350 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:87246 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:87245 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:15406 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:87246 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:87245 |
| Red Hat OpenShift distributed tracing 3.6.0 | Fixed | RHSA-2025:10735, RHSA-2025:10823 |
Not affected: 1 product
- Red Hat OpenShift distributed tracing 3.6.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-4673
- 2026-10-03 Alias added: GHSA-62jj-gr2r-5c34
- 2026-10-13 Fix available: RHSA-2026:19350 · Red Hat
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-22 Fix available: RHSA-2026:87245 · Red Hat
- 2026-10-22 Fix available: RHSA-2026:87246 · Red Hat
- 2026-10-23 Fix available: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) +1 · Red Hat
References
More Go standard library vulnerabilities
- TI-2020-00578 Improper certificate validation in Microsoft Windows KEVCVSS 3.1HIGH 8.1
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2023-24278 HTTP/2 CONTINUATION flood in net/http CVSS 3.1HIGH 7.5
- TI-2018-05208 The "go get" implementation in Go 1.9.4, when the -insecure command-line option is used… CVSS 3.1HIGH 8.8
- TI-2024-16309 Panic when parsing invalid palette-color images in golang.org/x/image CVSS 3.1HIGH 7.5
- TI-2022-20112 Request smuggling due to improper request handling in golang.org/x/net/http2/h2c CVSS 3.1HIGH 7.5
Sources
- CVE-2025-4673 · CVE Program
- CVE-2025-4673 · NVD
- FIRST EPSS
- GHSA-62jj-gr2r-5c34 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-4673 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences