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CVE-2026-27136 Invoking duplicate attributes can cause XSS in golang.org/x/net/html

🗓️ 22 May 2026 15:01:22Reported by GoType 
cvelist
 cvelist
🔗 www.cve.org👁 28 Views

CVE-2026-27136: Duplicate HTML attributes parsing creates an unexpected tree and enables XSS on render.

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ibm
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Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses golang.org/x/net-v0.47.0 which is vulnerable to CVE-2026-25680, CVE-2026-25681, CVE-2026-27136, CVE-2026-33814, CVE-2026-39821, CVE-2026-42502, CVE-2026-42506
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attackerkb
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CVE-2026-27136
22 May 202615:01
–attackerkb
nessus
Tenable Nessus
Amazon Linux 2023 : nerdctl (ALAS2023-2026-1788)
8 Jun 202600:00
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Tenable Nessus
Amazon Linux 2023 : docker (ALAS2023-2026-1835)
12 Jun 202600:00
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Rows per page
[
  {
    "vendor": "golang.org/x/net",
    "product": "golang.org/x/net/html",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "golang.org/x/net/html",
    "versions": [
      {
        "version": "0",
        "lessThan": "0.55.0",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "parser.parse"
      },
      {
        "name": "Parse"
      },
      {
        "name": "ParseFragment"
      },
      {
        "name": "ParseFragmentWithOptions"
      },
      {
        "name": "ParseWithOptions"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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22 May 2026 15:01Current
CVSS 3.16.1
EPSS0.00223
SSVC
28