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CVE-2026-31873 Unhead has a Bypass of URI Scheme Sanitization in makeTagSafe via Case-Sensitivity

🗓️ 12 Mar 2026 17:20:35Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Unhead 2.1.11 fails case-sensitive makeTagSafe check, enabling CSS injection via data scheme.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-31873
12 Mar 202617:20
attackerkb
circl
Circl
CVE-2026-31873
12 Mar 202600:10
circl
cnnvd
CNNVD
unhead 跨站脚本漏洞
12 Mar 202600:00
cnnvd
cve
CVE
CVE-2026-31873
12 Mar 202617:20
cve
euvd
EUVD
EUVD-2026-11640
12 Mar 202614:19
euvd
github
Github Security Blog
Unhead Vulnerable to Bypass of URI Scheme Sanitization in makeTagSafe via Case-Sensitivity
12 Mar 202614:19
github
nvd
NVD
CVE-2026-31873
12 Mar 202618:16
nvd
osv
OSV
GHSA-5339-HVWR-7582 Unhead Vulnerable to Bypass of URI Scheme Sanitization in makeTagSafe via Case-Sensitivity
12 Mar 202614:19
osv
ptsecurity
Positive Technologies
PT-2026-25021
12 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-31873
26 Mar 202615:16
redhatcve
Rows per page
[
  {
    "vendor": "unjs",
    "product": "unhead",
    "versions": [
      {
        "version": "< 2.1.11",
        "status": "affected"
      }
    ]
  }
]

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