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7.5 High

CVE-2026-13676 fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode (IDN) hostnames for HTTP-family URLs

Description

fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode (IDN) hostnames for HTTP-family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor, silently leaving the host in its original Unicode form while normalize() and equal() still return values that differ from a WHATWG-compatible URL parser. Applications that use fast-uri to enforce host-based policy (denylists, loopback filtering, redirect validation, outbound proxy routing) before passing the same URL to Node's URL or fetch can be bypassed when the two implementations resolve the same input to different hosts. Patches: upgrade to fast-uri 3.1.3 for the 3.x line or 4.0.1 for the 4.x line. Workarounds: enforce host policy using the same URL parser used for the actual request, or reject non-ASCII hosts before policy checks.

Affected products and versions

Product Affected versions Fixed in
fast-uri 4.0 4.0.0 → < 4.0.1 4.0.1
fast-uri 3.1 earliest → < 3.1.3 3.1.3
fast-uri 2.3 2.3.1 → < 3.1.3 3.1.3
Confidential Compute Attestation Versions not published
Cryostat 4 Versions not published
Migration Toolkit for Applications 8 Versions not published
Migration Toolkit for Containers Versions not published
Multicluster Engine for Kubernetes Versions not published
Network Observability Operator Versions not published
Show the 59 other branches
Product Affected versions Fixed in
OpenShift Lightspeed Versions not published
OpenShift Pipelines Versions not published
OpenShift Serverless Versions not published
Red Hat Advanced Cluster Management for Kubernetes 2 Versions not published
Red Hat AMQ Broker 7 Versions not published
Red Hat Ansible Automation Platform 2 Versions not published
Red Hat build of Apache Camel - HawtIO 4 Versions not published
Red Hat build of Apicurio Registry 3 Versions not published
Red Hat Build of Podman Desktop Versions not published
Red Hat Connectivity Link 1 Versions not published
Red Hat Data Grid 8 Versions not published
Red Hat Developer Hub Versions not published
Red Hat Discovery 2 1786634825 earliest → < 1786634825 1786634825
Red Hat Edge Manager 1 Versions not published
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux AI (RHEL AI) 3 Versions not published
Red Hat OpenShift AI (RHOAI) Versions not published
Red Hat OpenShift Container Platform 4 Versions not published
Red Hat Openshift Data Foundation 4 Versions not published
Red Hat OpenShift Dev Spaces Versions not published
Red Hat OpenShift Virtualization 4 Versions not published
Red Hat Quay 3 Versions not published
Red Hat Satellite 6 Versions not published
Self-service automation portal 2 Versions not published
Red Hat OpenShift Container Platform 4.21 1784728481 earliest → < 1784728481 1784728481
Red Hat OpenShift Container Platform 4.22 1784729919 earliest → < 1784729919 1784729919
Red Hat OpenShift Container Platform 4.20 1783596795 earliest → < 1783596795 1783596795
Red Hat Edge Manager 1.1 1784127736 earliest → < 1784127736 1784127736
Red Hat Quay 3.9 1784125838 earliest → < 1784125838 1784125838
Red Hat Quay 3.16 1783955846 earliest → < 1783955846 1783955846
Red Hat OpenShift Container Platform 4.2 1783596795 earliest → < 1783596795 1783596795
Red Hat Developer Hub 1.9 1784210921 earliest → < 1784210921 1784210921
Red Hat Migration Toolkit 1.8 1783690532 earliest → < 1783690532 1783690532
Red Hat Ansible Automation Platform 2.2 1784622951 earliest → < 1784622951 1784622951
Red Hat Migration Toolkit for Applications 8.2 1784109883 earliest → < 1784109883 1784109883
Red Hat OpenShift Container Platform 4.19 1784144829 earliest → < 1784144829 1784144829
Red Hat Developer Hub 1.10 1785411652 earliest → < 1785411652 1785411652
Red Hat OpenShift Dev Spaces 3.29 1784737150 earliest → < 1784737150 1784737150
Red Hat Ansible Automation Platform 2.6 1785773509 earliest → < 1785773509 1785773509
Red Hat Ansible Automation Platform 2.7 1785413994 earliest → < 1785413994 1785413994
Red Hat OpenShift Container Platform 4.17 1784744859 earliest → < 1784744859 1784744859
Red Hat Satellite 6.18 1788230538 earliest → < 1788230538 1788230538
Red Hat Satellite 6.19 1785937325 earliest → < 1785937325 1785937325
Red Hat OpenShift Container Platform 4.16 1785530656 earliest → < 1785530656 1785530656
Red Hat Migration Toolkit for Containers 1.8 1783690532 earliest → < 1783690532 1783690532
multicluster engine for Kubernetes 2.11 1786911977 earliest → < 1786911977 1786911977
multicluster engine for Kubernetes 2.17 1786668856 earliest → < 1786668856 1786668856
Red Hat Advanced Cluster Management for Kubernetes 2.16 1786908361 earliest → < 1786908361 1786908361
Red Hat Advanced Cluster Management for Kubernetes 2.17 1787335105 earliest → < 1787335105 1787335105
Red Hat OpenShift AI 3.4 1787121387 earliest → < 1787121387 1787121387
Red Hat Openshift Data Foundation 4.18 1786706880 earliest → < 1786706880 1786706880
Red Hat Openshift Data Foundation 4.19 1786703143 earliest → < 1786703143 1786703143
Red Hat Openshift Data Foundation 4.2 1786629548 earliest → < 1786629548 1786629548
Cluster Observability Operator 1.5.2 1787597621 earliest → < 1787597621 1787597621
Cluster Observability Operator 1.5.0 1787597621 earliest → < 1787597621 1787597621
Red Hat Openshift Data Foundation 4.20 1786629548 earliest → < 1786629548 1786629548
Red Hat AMQ Broker 7.13.6 Versions not published
Red Hat AMQ Broker 7.14.1 Versions not published

References

Timeline

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The 17 CVEs of fast-uri →
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