CVE-2026-56858
mediumpriority · track · 0EPSS 0.003 · 24 %ileDEEUFRUSEPSS · scored 2026-10-27
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
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 (23)
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 Migration Toolkit for Applicationsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:migration_toolkit_for_applications_6.2.0
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2850Golang Go: Mehrere SchwachstellenDeutsch2026-08-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um einen Denial of Service zu verursachen, ein Cross Site Scripting durchzuführen, Sicherheitsmaßnahmen zu umgehen oder Daten zu manipulieren.
- BIT-golang-2026-56858Fix Javascript regexp context tracking in html/template2026-08-19vendor · osvUS
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
- GO-2026-6091Fix Javascript regexp context tracking in html/template2026-08-13vendor · osvUS
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
also known as (5)
Other names and identifiers for this entity.
- CNNVD-2026-27041359cnnvd
- EUVD-2026-58512enisa_euvd
- GHSA-c974-w86c-vpfwenisa_euvd
- BIT-golang-2026-56858osv
- GO-2026-6091osv
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://go.dev/cl/807100cnnvd
- https://go.dev/issue/80435cnnvd
- https://groups.google.com/g/golang-announce/c/94pEornpRlIcnnvd
- https://pkg.go.dev/vuln/GO-2026-6091cnnvd
- https://go.dev/cl/807100enisa_euvd
- https://go.dev/issue/80435enisa_euvd
- https://groups.google.com/g/golang-announce/c/94pEornpRlIenisa_euvd
- https://pkg.go.dev/vuln/GO-2026-6091enisa_euvd
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