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CVE-2026-56858

🗓️ 13 Aug 2026 21:58:53Reported by GoType 
cve
 cve
🔗 web.nvd.nist.gov👁 122 Views

html/template JavaScript regexp context tracking flaw allows XSS via early unescaped slash injection.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
osv
OSV
MINI-V5JJ-2QHX-X3WH
17 Aug 202607:32
osv
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MINI-V5RM-M9P9-3MRH
15 Aug 202600:10
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MINI-V5VM-FJ8C-98XG
17 Aug 202607:31
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MINI-V692-3V6F-549M
15 Aug 202607:51
osv
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MINI-V6G7-FQPC-R9VR
16 Aug 202613:31
osv
osv
OSV
MINI-V6JW-MHWG-7XMR
16 Aug 202613:31
osv
osv
OSV
MINI-V6RF-8PG6-9R7M
14 Aug 202617:33
osv
osv
OSV
MINI-V75R-296C-P5H3
17 Aug 202613:39
osv
osv
OSV
MINI-V7F2-HX75-4752
16 Aug 202613:32
osv
osv
OSV
MINI-V7F9-94W7-9RVW
14 Aug 202615:53
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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03 Sep 2026 16:37Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.16.1
EPSS0.0031
SSVC
122