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CVE-2026-31873: Improper Neutralization of Input During Web Page Generation

🗓️ 12 Mar 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 5 Views

Unhead prior to 2.1.11 allows CSS injection for UI redressing via case-insensitive URIs.

Related
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
cvelist
Cvelist
CVE-2026-31873 Unhead has a Bypass of URI Scheme Sanitization in makeTagSafe via Case-Sensitivity
12 Mar 202617:20
–cvelist
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
mend
Mend
CVE-2026-31873
12 Mar 202617:20
–mend
nvd
NVD
CVE-2026-31873
12 Mar 202618:16
–nvd
osv_clsa
osv_clsa
CLSA-2026-1788988912 TuxCare security update for unhead (2 CVEs)
9 Sep 202621:21
–osv_clsa
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16 Mar 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 3.16.1
EPSS0.00267
SSVC
5