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Fencer Intel
medium 6.8

CVE-2025-4673 json

Sensitive headers not cleared on cross-origin redirect in net/http

published last yr. modified 26d ago also BIT-golang-2025-4673 , EUVD-2025-18133 , GO-2025-3751

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information.

Patch / fix

  • bitnami golang 1.23.10, 1.24.4
  • go stdlib 1.23.10, 1.24.4
  • Go standard library net/http 1.23.10, 1.24.4
  • golang-1.24 Debian 13 1.24.4-1

debian advisories DEBIAN-CVE-2025-4673

  • golang-1.22 Ubuntu 22.04 LTS 1.22.2-2~22.04.3
  • golang-1.22 Ubuntu 24.04 LTS 1.22.2-2ubuntu0.4

ubuntu advisories UBUNTU-CVE-2025-4673

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • git-lfs RHEL 9 3.7.1-4.el9_8
  • opentelemetry-collector RHEL 10.0 0.127.0-3.el10_0
  • opentelemetry-collector RHEL 9 0.127.0-2.el9_6
  • golang RHEL 10.0 1.24.4-1.el10_0
  • go-toolset RHEL 10.0 1.24.4-1.el10_0
  • golang-bin RHEL 10.0 1.24.4-1.el10_0
  • golang-src RHEL 10.0 1.24.4-1.el10_0
  • golang-misc RHEL 10.0 1.24.4-1.el10_0

red hat advisories RHSA-2026:19350RHSA-2025:16432RHSA-2025:15887RHSA-2025:15406RHSA-2025:10677RHSA-2025:10676

  • golang-github-prometheus-prometheus SLE Module for Package Hub 15 SP7 3.13.2-150100.4.40.2
  • grafana Multi Linux Manager Tools SLE-15 12.4.10-150002.4.27.1
  • mgr-push Multi Linux Manager Tools SLE-15 5.2.5-150002.3.12.1
  • spacecmd Multi Linux Manager Tools SLE-15 5.2.10-150002.3.15.1
  • uyuni-tools Multi Linux Manager Tools SLE-Micro-5, Multi Linux Manager Tools SLE-15 5.2.17-150002.3.20.1
  • venv-salt-minion Multi Linux Manager Tools SLE-Micro-5, Multi Linux Manager Tools SLE-15 3006.0-150002.5.22.1
  • spacewalk-client-tools Multi Linux Manager Tools SLE-15 5.2.7-150002.3.12.1
  • golang-github-prometheus-prometheus Multi Linux Manager Tools SLE-15 3.13.2-150002.3.19.1

suse advisories SUSE-SU-2026:4606-1SUSE-SU-2026:4585-1SUSE-SU-2025:03159-1SUSE-SU-2025:03158-1SUSE-SU-2025:02120-1SUSE-SU-2025:01848-1

  • golang-github-prometheus-prometheus openSUSE Tumbleweed 3.13.2-1.1
  • go1.23 openSUSE Tumbleweed 1.23.10-1.1
  • go1.24 openSUSE Tumbleweed 1.24.4-1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250612T141001-1.1

opensuse advisories openSUSE-SU-2026:11436-1openSUSE-SU-2025:15223-1openSUSE-SU-2025:15224-1openSUSE-SU-2025:15225-1

  • git-lfs AlmaLinux 9 3.7.1-4.el9_8
  • opentelemetry-collector AlmaLinux 10 0.127.0-3.el10_0
  • opentelemetry-collector AlmaLinux 9 0.127.0-2.el9_6
  • delve AlmaLinux 8 1.24.1-1.module_el8.10.0+3977+66935a26
  • golang AlmaLinux 8 1.24.4-1.module_el8.10.0+4027+41c6fed2
  • go-toolset AlmaLinux 8 1.24.4-1.module_el8.10.0+4027+41c6fed2
  • golang-bin AlmaLinux 8 1.24.4-1.module_el8.10.0+4027+41c6fed2
  • golang-src AlmaLinux 8 1.24.4-1.module_el8.10.0+4027+41c6fed2

almalinux advisories ALSA-2026:19350ALSA-2025:16432ALSA-2025:15887ALSA-2025:10672ALSA-2025:10676ALSA-2025:10677

  • opentelemetry-collector Rocky Linux 9 0.127.0-2.el9_6
  • golang Rocky Linux 9 1.24.4-1.el9_6
  • golang Rocky Linux 10 1.24.4-1.el10_0
  • opentelemetry-collector Rocky Linux 10 0.127.0-3.el10_0
  • delve Rocky Linux 8 1.24.1-1.module+el8.10.0+1951+c74bd827
  • delve Rocky Linux 8 1.24.1-1.module+el8.10.0+1987+42f155bb
  • golang Rocky Linux 8 1.24.4-1.module+el8.10.0+2008+0bb8dc3e
  • go-toolset Rocky Linux 8 1.24.4-1.module+el8.10.0+2008+0bb8dc3e

rocky linux advisories RLSA-2025:15887RLSA-2025:10676RLSA-2025:10677RLSA-2025:16432RLSA-2025:10672

  • go Alpine 3.24, Alpine 3.23, Alpine 3.22 1.24.4-r0

alpine advisories ALPINE-CVE-2025-4673

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • golang CBL-Mariner 2.0 1.18.8-9
  • golang CBL-Mariner 2.0 1.22.7-5
  • golang Azure Linux 3.0 1.23.10-1
  • msft-golang CBL-Mariner 2.0 1.24.1-3
  • golang Azure Linux 3.0 1.24.4-1

azure linux advisories AZL-63716AZL-63725AZL-63735AZL-63866AZL-72128

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • go Arch Linux 1.24.4-1

arch linux advisories AVG-2896

Is CVE-2025-4673 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-4673 updated cvss 6.8

net/http: Sensitive headers not cleared on cross-origin redirect in net/http

  • Red Hat Cryostat 4 cryostat/cryostat-storage-rhel9 Red Hat Custom Metric Autoscaler operator for Red Hat Openshift custom-metrics-autoscaler/custom-metrics-autoscaler-rhel8 Red Hat Deployment Validation Operator dvo/deployment-validation-rhel8-operator Red Hat Fence Agents Remediation Operator workload-availability/fence-agents-remediation-rhel8-operator Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9 Red Hat Kube Descheduler Operator kube-descheduler-operator/descheduler-rhel9
    +34 more products
    Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel9 Red Hat Logical Volume Manager Storage lvms4/lvms-rhel9-operator Red Hat Machine Deletion Remediation Operator workload-availability/machine-deletion-remediation-rhel8-operator Red Hat Migration Toolkit for Applications 7 mta/mta-cli-rhel9 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-registry-rhel8 Red Hat Migration Toolkit for Virtualization migration-toolkit-virtualization/mtv-api-rhel9 Red Hat Multicluster Engine for Kubernetes multicluster-engine/hive-rhel8, multicluster-engine/hive-rhel9 Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-agent-rhel9 Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-rhel8-operator Red Hat Node Maintenance Operator workload-availability/node-maintenance-rhel8-operator, container-native-virtualization/node-maintenance-operator Red Hat OpenShift API for Data Protection oadp/oadp-velero-rhel9 Red Hat OpenShift Developer Tools and Services helm Red Hat OpenShift Pipelines openshift-pipelines-client Red Hat OpenShift Run Once Duration Override Operator run-once-duration-override-operator/run-once-duration-override-rhel9 Red Hat OpenShift Secondary Scheduler Operator openshift-secondary-scheduler-operator/secondary-scheduler-rhel9-operator Red Hat OpenShift Serverless kn-workflow-plugin, openshift-serverless-1/logic-rhel8-operator, openshift-serverless-1-tech-preview/logic-rhel8-operator Red Hat OpenShift Service Mesh 2 openshift-golang-builder-container Red Hat OpenShift Service Mesh 3 openshift-istio-cni-container Red Hat Power monitoring for Red Hat OpenShift openshift-power-monitoring/kepler-rhel9 Red Hat 3scale API Management Platform 2 rhcl-1/authorino-rhel9, 3scale-tech-preview/authorino-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 flightctl, flightctl-agent, flightctl-selinux, rhacm2/subctl-rhel9 Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8 Red Hat Ansible Automation Platform 2 receptor, python3.11-galaxy-ng, aap-cloud-ui-container, automation-gateway-proxy, automation-gateway-proxy-openssl30, automation-gateway-proxy-openssl32 Red Hat build of Apache Camel - HawtIO 4 hawtio-operator-container Red Hat Ceph Storage 5 rhel9/grafana, rhceph/grafana-rhel9 Red Hat Ceph Storage 6 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +18 more Red Hat Ceph Storage 7 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +18 more Red Hat Ceph Storage 8 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +19 more Red Hat Certification for Red Hat Enterprise Linux 8 redhat-certification-preflight Red Hat Certification Program for Red Hat Enterprise Linux 9 redhat-certification-preflight Red Hat Connectivity Link 1 rhcl-1/authorino-rhel9, 3scale-tech-preview/authorino-rhel9 Red Hat Edge Manager preview flightctl Red Hat Enterprise Linux 7 rhc, skopeo, host-metering, rhc-worker-script, host-metering-selinux Red Hat Enterprise Linux 8 rhc, conmon, podman, skopeo, buildah, git-lfs, +33 more
    affected: workaround, no fix available “Fix deferred”

21 more affected, 9 more fixed, 1 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
OSV 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami golang
<1.23.10
>=1.24.0-0, <1.24.4
1.23.10
1.24.4
go stdlib
<1.23.10
>=1.24.0-0, <1.24.4
1.23.10
1.24.4

Affected products

  • Go standard library net/http

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.