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Fencer Intel
high 7.5

CVE-2026-6322 json

fast-uri vulnerable to host confusion via percent-encoded authority delimiters

published 6mo ago modified 5h ago also EUVD-2026-27248 , GHSA-v39h-62p7-jpjc

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator, changing the URI's authority to the second domain. Applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing can be steered to a different authority than the input appeared to specify. Versions <= 3.1.1 are affected. Update to 3.1.2 or later.

Patch / fix

  • npm fast-uri 2.4.1, 3.1.2
  • fast-uri fast-uri 3.1.2
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:2.5.20260715-1.el8ap
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:2.5.20260715-1.el9ap
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 0:2.6.10-1.el9ap
  • Red Hat Red Hat Enterprise Linux 10 0:1.1.1-1.el10_2
  • Red Hat Cluster Observability Operator 1.5.0 1782838476, 1782838753, 1782839193, 1782839279, 1782839494, 1782839981, 1782839996, 1782840519, 1782840539, 1782841925
  • Red Hat multicluster engine for Kubernetes 2.11 1780910888
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1780600823
  • Red Hat Red Hat Ansible Automation Platform 2.6 1782721130, 1782761510
  • Red Hat Red Hat Ansible Automation Platform 2.7 1783919486
  • Red Hat Red Hat Developer Hub 1.10 1783448184
  • Red Hat Red Hat Developer Hub 1.9 1781187342
  • Red Hat Red Hat Discovery 2 1782166952, 1788206196
  • Red Hat Red Hat Edge Manager 1.0 1783502438, 1783502765
  • Red Hat Red Hat Edge Manager 1.1 1784126822, 1784127736, 1784194574, 1784194938
  • Red Hat Red Hat Hardened Images 13.1.3-0.3.hum1
  • Red Hat Red Hat Migration Toolkit 1.8 1783690532
  • Red Hat Red Hat Migration Toolkit for Applications 8.2 1784109883
  • Red Hat Red Hat OpenShift AI 3.4 1786611759, 1786612219, 1787121387, 1787250508, 1787250617, 1787251250, 1787251550, 1787347991
  • Red Hat Red Hat OpenShift Container Platform 4.18 1787031447
  • Red Hat Red Hat OpenShift Container Platform 4.19 1782880472, 1786486822
  • Red Hat Red Hat OpenShift Container Platform 4.20 1782313844, 1783602326
  • Red Hat Red Hat OpenShift Container Platform 4.21 1782308519, 1782914001, 1783502338
  • Red Hat Red Hat OpenShift Container Platform 4.22 1782224099, 1782224316, 1782224390
  • Red Hat Red Hat Openshift Data Foundation 4.18 1786705347, 1786705558, 1786705646, 1786705741, 1786705777, 1786705802, 1786705938, 1786706101, 1786706125, 1786706138, 1786706177, 1786706188, 1786706357, 1786706577, 1786706612, 1786706644, 1786706659, 1786706679, 1786706880
  • Red Hat Red Hat Openshift Data Foundation 4.19 1786701555, 1786701839, 1786702052, 1786702264, 1786702276, 1786702315, 1786702440, 1786702448, 1786702559, 1786702563, 1786702623, 1786702636, 1786702713, 1786702716, 1786702872, 1786702917, 1786702949, 1786703071, 1786703137, 1786703143
  • Red Hat Red Hat Openshift Data Foundation 4.20 1786626399, 1786627106, 1786627382, 1786627430, 1786627460, 1786627469, 1786627559, 1786628053, 1786628142, 1786628235, 1786628340, 1786628623, 1786629076, 1786629478, 1786629761, 1786631508, 1786632256, 1786644072, 1786687918, 1786688215
  • Red Hat Red Hat Openshift Data Foundation 4.21 1786627168, 1786627281, 1786627792, 1786627823, 1786628067, 1786628303, 1786628605, 1786628657, 1786628916, 1786628998, 1786629324, 1786629773, 1786630412, 1786630739, 1786631438, 1786634168, 1786644678, 1786697305, 1786697443, 1786698066
  • Red Hat Red Hat Openshift Data Foundation 4.22 1787057250, 1787057603, 1787057849, 1787057964, 1787057989, 1787058278, 1787058403, 1787058450, 1787058588, 1787058658, 1787058706, 1787058807, 1787058970, 1787059072, 1787059085, 1787059538, 1787059616, 1787059853, 1787060257, 1787061098
  • node-ajv Debian 14 8.20.0~ds+~cs6.1.3-1

debian advisories DEBIAN-CVE-2026-6322

  • grafana13.1 hummingbird 1 13.1.3-0.3.hum1
  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el8ap
  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el9ap
  • receptorctl ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el8ap
  • receptorctl ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el9ap
  • ansible-core ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1:2.16.19-1.el8ap
  • ansible-core ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1:2.16.19-1.el9ap
  • ansible-test ansible automation platform 2.5 1:2.16.19-1.el8ap

red hat advisories RHSA-2026:60855RHSA-2026:42078RHSA-2026:37385RHSA-2026:34160

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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-2026-6322 updated cvss 7.5

fast-uri: fast-uri: URI authority bypass due to improper delimiter handling

  • Red Hat Confidential Compute Attestation openshift-sandboxed-containers/osc-pccs
    affected: no fix planned “Will not fix”
  • Red Hat Network Observability Operator network-observability/network-observability-console-plugin-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-console-plugin-rhel9, openshift-lightspeed/lightspeed-console-plugin-419-rhel9, openshift-lightspeed/lightspeed-console-plugin-pf5-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-ui-rhel9 Red Hat OpenShift Serverless openshift-serverless-1/kn-eventing-integrations-transform-jsonata-rhel9
    affected: no fix available
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform-24/lightspeed-rhel8, ansible-automation-platform-25/lightspeed-rhel8, ansible-automation-platform-26/lightspeed-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Build of Podman Desktop rh-podman-desktop.git
    affected: no fix available
  • Red Hat Build of Podman Desktop - Tech Preview rhdesktop/rh-podman-desktop-ext-bootc-rhel10
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 sgx-mpa, tdx-qgs, sgx-libs, sgx-pccs, linux-sgx, sgx-common, +2 more
    affected: no fix available
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 5 openshift5/ose-console-rhel10, openshift5/ose-monitoring-plugin-rhel9, openshift5/ose-monitoring-plugin-rhel10 Red Hat Openshift Data Foundation 4 rhceph-dev/odf4-mcg-core-rhel9 Red Hat OpenShift Dev Spaces devspaces/dashboard-rhel9 Red Hat Self-service automation portal 2 ansible-automation-platform/automation-portal
    affected: no fix available
show 25 more
  • Red Hat Cluster Observability Operator 1.5 cluster-observability-operator/logging-console-plugin-rhel9 1782841925, cluster-observability-operator/monitoring-console-plugin-rhel9 1782838476, cluster-observability-operator/logging-console-plugin-pf4-rhel9 1782839279, cluster-observability-operator/logging-console-plugin-pf5-rhel9 1782840539, cluster-observability-operator/distributed-tracing-console-plugin-rhel9 1782838753, cluster-observability-operator/troubleshooting-panel-console-plugin-rhel9 1782839494, +4 more
    fixed: vendor fix RHSA-2026:34342
  • Red Hat multicluster engine for Kubernetes 2.11 multicluster-engine/console-mce-rhel9 1780910888
    fixed: vendor fix RHSA-2026:25271
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 rhacm2/console-rhel9 1780600823
    fixed: vendor fix RHSA-2026:25273
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-gateway-server 2.5.20260715-1.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-gateway-server 2.5.20260715-1.el9ap
    fixed: vendor fix RHSA-2026:42078
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/gateway-rhel9 1782761510, ansible-automation-platform-tech-preview/mcp-server-rhel9 1782721130
    fixed: vendor fix RHSA-2026:34374
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-platform-ui 2.6.10-1.el9ap
    fixed: vendor fix RHSA-2026:34160
  • Red Hat Ansible Automation Platform 2.7 ansible-automation-platform-27/gateway-rhel9 1783919486
    fixed: vendor fix RHSA-2026:42142
  • Red Hat Data Grid 8.6.2
    fixed: vendor fix RHSA-2026:41951
  • Red Hat Developer Hub 1.9 rhdh/rhdh-hub-rhel9 1781187342
    fixed: vendor fix RHSA-2026:26234
  • Red Hat Developer Hub 1.10 rhdh/rhdh-hub-rhel9 1783448184
    fixed: vendor fix RHSA-2026:36754
  • Red Hat Discovery 2 discovery/discovery-ui-rhel9 1782166952, discovery/discovery-ui-rhel9 1788206196
    fixed: vendor fix RHSA-2026:29197
  • Red Hat Edge Manager 1.0 rhem/flightctl-ui-rhel9 1783502438, rhem/flightctl-ui-ocp-rhel9 1783502765
    fixed: vendor fix RHSA-2026:36651
  • Red Hat Edge Manager 1.1 rhem/flightctl-ui-rhel9 1784127736, rhem/flightctl-ui-rhel10 1784194574, rhem/flightctl-ui-ocp-rhel9 1784126822, rhem/flightctl-ui-ocp-rhel10 1784194938
    fixed: vendor fix RHSA-2026:40945
  • Red Hat Enterprise Linux Extensions Channel (v. 10) rh-podman-desktop 1.1.1-1.el10_2
    fixed: vendor fix RHSA-2026:37385
  • Red Hat Hardened Images grafana13.1 13.1.3-0.3.hum1
    fixed: vendor fix RHSA-2026:60855
  • Red Hat Migration Toolkit 1.8 rhmtc/openshift-migration-ui-rhel8 1783690532
    fixed: vendor fix RHSA-2026:41928
  • Red Hat Migration Toolkit for Applications 8.2 mta/mta-solution-server-rhel9 1784109883
    fixed: vendor fix RHSA-2026:43038
  • Red Hat OpenShift AI 3.4 rhoai/odh-dashboard-rhel9 1787347991, rhoai/odh-mod-arch-maas-rhel9 1787251250, rhoai/odh-mod-arch-automl-rhel9 1787250508, rhoai/odh-mod-arch-gen-ai-rhel9 1786611759, rhoai/odh-mod-arch-mlflow-rhel9 1786612219, rhoai/odh-mod-arch-autorag-rhel9 1787251550, +3 more
    fixed: vendor fix RHSA-2026:60520
  • Red Hat OpenShift Container Platform 4.18 openshift4/ose-console-rhel9 1787031447
    fixed: vendor fix RHSA-2026:57487
  • Red Hat OpenShift Container Platform 4.19 openshift4/ose-console-rhel9 1786486822, openshift4/ose-monitoring-plugin-rhel9 1782880472
    fixed: vendor fix RHSA-2026:54555
  • Red Hat OpenShift Container Platform 4.20 openshift4/ose-console-rhel9 1783602326, openshift4/ose-monitoring-plugin-rhel9 1782313844
    fixed: vendor fix RHSA-2026:37628
  • Red Hat OpenShift Container Platform 4.21 openshift4/ose-console-rhel9 1783502338, openshift4/ose-monitoring-plugin-rhel9 1782308519, openshift4/nmstate-console-plugin-rhel9 1782914001
    fixed: vendor fix RHSA-2026:34770
  • Red Hat OpenShift Container Platform 4.22 openshift4/ose-console-rhel9 1782224390, openshift4/ose-monitoring-plugin-rhel9 1782224316, openshift4/nmstate-console-plugin-rhel9 1782224099
    fixed: vendor fix RHSA-2026:29796
  • Red Hat Openshift Data Foundation 4.18 odf4/cephcsi-rhel9 1786705347, odf4/odf-cli-rhel9 1786705938, odf4/mcg-core-rhel9 1786705558, odf4/odf-console-rhel9 1786706577, odf4/mcg-rhel9-operator 1786705646, odf4/ocs-rhel9-operator 1786705802, +13 more
    fixed: vendor fix RHSA-2026:56431
  • Red Hat Openshift Data Foundation 4.19 odf4/cephcsi-rhel9 1786701839, odf4/odf-cli-rhel9 1786702440, odf4/mcg-core-rhel9 1786702052, odf4/odf-console-rhel9 1786703071, odf4/mcg-rhel9-operator 1786702559, odf4/ocs-rhel9-operator 1786702276, +14 more
    fixed: vendor fix RHSA-2026:56366

10 more fixed, 43 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
yes
Technical impact
partial
Assessed
6mo ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm fast-uri
>=3.0.0, <3.1.2
<2.4.1
3.1.2
2.4.1

Affected products

  • fast-uri fast-uri
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9
  • Red Hat Red Hat Data Grid 8.6.2
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Cluster Observability Operator 1.5.0
  • Red Hat multicluster engine for Kubernetes 2.11
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16
  • Red Hat Red Hat Ansible Automation Platform 2.6
  • Red Hat Red Hat Ansible Automation Platform 2.7
  • Red Hat Red Hat Developer Hub 1.10
  • Red Hat Red Hat Developer Hub 1.9
  • Red Hat Red Hat Discovery 2
  • Red Hat Red Hat Edge Manager 1.0
  • Red Hat Red Hat Edge Manager 1.1
  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat Migration Toolkit 1.8
  • Red Hat Red Hat Migration Toolkit for Applications 8.2
  • Red Hat Red Hat OpenShift AI 3.4
  • Red Hat Red Hat OpenShift Container Platform 4.18
  • Red Hat Red Hat OpenShift Container Platform 4.19
  • Red Hat Red Hat OpenShift Container Platform 4.20
  • Red Hat Red Hat OpenShift Container Platform 4.21
  • Red Hat Red Hat OpenShift Container Platform 4.22
  • Red Hat Red Hat Openshift Data Foundation 4.18
  • Red Hat Red Hat Openshift Data Foundation 4.19
  • Red Hat Red Hat Openshift Data Foundation 4.20
  • Red Hat Red Hat Openshift Data Foundation 4.21
  • Red Hat Red Hat Openshift Data Foundation 4.22
  • Red Hat Red Hat Quay 3.10
  • Red Hat Red Hat Quay 3.12
  • Red Hat Red Hat Quay 3.16
  • Red Hat Red Hat Quay 3.17
  • Red Hat Red Hat Quay 3.9
  • Red Hat Red Hat Satellite 6.18
  • Red Hat Confidential Compute Attestation
  • Red Hat Cryostat 4
  • Red Hat Network Observability Operator
  • Red Hat OpenShift Lightspeed
  • Red Hat OpenShift Pipelines
  • Red Hat OpenShift Serverless
  • Red Hat Red Hat AMQ Broker 7
  • Red Hat Red Hat Ansible Automation Platform 2
  • Red Hat Red Hat build of Apache Camel - HawtIO 4
  • Red Hat Red Hat Build of Podman Desktop
  • Red Hat Red Hat Build of Podman Desktop - Tech Preview
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3
  • Red Hat Red Hat OpenShift AI (RHOAI)

Classification

Weakness
  • CWE-436 Interpretation Conflict
  • CWE-140 Improper Neutralization of Delimiters

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.

The maintainers of fastify/fast-uri published their own advisory on GitHub. Reviewed sources take precedence over it.