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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-56858

CVE-2026-56858: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh8.1

    High [CVE-2026-56858] Go html/template: Cross-Site Scripting via pathological input

    CVE-2026-56858Source published Source updated

    Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS. A flaw was found in the `html/template` component of Go (golang). This could lead to Cross-Site Scripting (XSS), where malicious scripts are executed in a user's browser, potentially compromising user data or actions. This is an Important cross-site scripting (XSS) vulnerability in the Go `html/template` package. Applications utilizing this package to render untrusted input are susceptible to arbitrary content injection due to a flaw in how pathological inputs are handled, potentially leading to client-side script execution. Red Hat severity: Important — CVSS 8.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N). Weakness: CWE-79.…

    Affected products in this advisory
    • Red Hat Enterprise Linux 10.0 Extended Update Support
    • Red Hat Enterprise Linux 8
    • Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
    • Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

    53 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • golang-0:1.26.7-1.el10_2
    • grafana-0:10.2.6-28.el10_2.5
    • grafana-pcp-0:5.3.0-8.el10_2.1
    • buildah-2:1.43.1-5.el10_2

    46 more entries in the full advisory.

    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

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