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CVE-2026-56858 Fix Javascript regexp context tracking in html/template

🗓️ 13 Aug 2026 21:58:53Reported by GoType 
cvelist
 cvelist
🔗 www.cve.org👁 39 Views

Go html/template regex context tracking flaw allows early unescaped '/' injection enabling XSS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
osv
OSV
MINI-V4X5-G54J-9J66
17 Aug 202619:45
osv
osv
OSV
MINI-V53R-64V7-QGX3
17 Aug 202601:30
osv
osv
OSV
MINI-V562-6879-2VC5
16 Aug 202613:31
osv
osv
OSV
MINI-V5CW-3QV4-99C3
15 Aug 202613:33
osv
osv
OSV
MINI-V5HH-4QJR-FF2W
15 Aug 202619:30
osv
osv
OSV
MINI-V5JJ-2QHX-X3WH
17 Aug 202607:32
osv
osv
OSV
MINI-V5RM-M9P9-3MRH
15 Aug 202600:10
osv
osv
OSV
MINI-V5VM-FJ8C-98XG
17 Aug 202607:31
osv
osv
OSV
MINI-V692-3V6F-549M
15 Aug 202607:51
osv
osv
OSV
MINI-V6G7-FQPC-R9VR
16 Aug 202613:31
osv
Rows per page
[
  {
    "vendor": "Go standard library",
    "product": "html/template",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "html/template",
    "versions": [
      {
        "version": "0",
        "lessThan": "1.25.13",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "1.26.0-0",
        "lessThan": "1.26.6",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "1.27.0-0",
        "lessThan": "1.27.0-rc.3",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "tJS"
      },
      {
        "name": "Template.Execute"
      },
      {
        "name": "Template.ExecuteTemplate"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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13 Aug 2026 21:58Current
EPSS0.0031
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