CVE-2026-27136
mediumpriority · track · 0EPSS 0.002 · 13 %ileDEEUFRRUUSEPSS · scored 2026-10-27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (133)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux Advanced Cluster Management for Kubernetesall versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_management_for_kubernetes
- Red Hat Enterprise Linux Advanced Cluster Securityall versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security
- Red Hat Enterprise Linux Edge Managerall versionscert_bundDEcpe:/o:redhat:enterprise_linux:edge_manager
- Red Hat Enterprise Linux Multicluster Engine for Kubernetesall versionscert_bundDEcpe:/o:redhat:enterprise_linux:multicluster_engine_for_kubernetes
- Red Hat OpenShift API for Data Protectionall versionscert_bundDEcpe:/a:redhat:openshift:api_for_data_protection
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
- Red Hat OpenShift Container Platform 4.22.4all versionscert_bundDEcpe:/a:redhat:openshift:container_platform_4.22.4
- Red Hat OpenShift Migration Toolkit for Applicationsall versionscert_bundDEcpe:/a:redhat:openshift:migration_toolkit_for_applications
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1653Golang Go-Module (Net, Image, Crypto: Mehrere SchwachstellenDeutsch2026-05-21csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um erweiterte Privilegien zu erlangen, Cross-Site-Scripting-Angriffe durchzuführen, Sicherheitsmaßnahmen zu umgehen oder einen Denial-of-Service-Zustand zu verursachen.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
- GO-2026-5030Invoking duplicate attributes can cause XSS in golang.org/x/net/html2026-05-22vendor · osvUS
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://go.dev/cl/781685cnnvd
- https://go.dev/doc/installPatchcnnvd
- https://go.dev/issue/79575cnnvd
- https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27136cnnvd
- https://pkg.go.dev/vuln/GO-2026-5030cnnvd
- https://go.dev/cl/781685enisa_euvd
- https://go.dev/issue/79575enisa_euvd
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