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CVE-2026-86205 h3 before 2.0.1-rc.18 Open Redirect via redirectBack()

🗓️ 06 Sep 2026 12:00:25Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 52 Views

Open redirect in h3 before 2.0.1-rc.18 via protocol-relative paths in redirectBack().

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-86205
6 Sep 202612:00
–cve
euvd
EUVD
EUVD-2026-72105
6 Sep 202612:00
–euvd
mend
Mend
CVE-2026-86205
6 Sep 202612:00
–mend
nvd
NVD
CVE-2026-86205
6 Sep 202612:17
–nvd
osv_ghsa
osv_ghsa
GHSA-FP4X-GGRF-WMC6 H3 has an Open Redirect via Protocol-Relative Path in redirectBack() Referer Validation
23 Mar 202621:48
–osv_ghsa
ptsecurity
Positive Technologies
PT-2026-86518
6 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-86205: URL Redirection to Untrusted Site
6 Sep 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-86205
18 Sep 202608:25
–redhatcve
susecve
SUSE CVE
SUSE CVE-2026-86205
10 Sep 202601:48
–susecve
vulnrichment
Vulnrichment
CVE-2026-86205 h3 before 2.0.1-rc.18 Open Redirect via redirectBack()
6 Sep 202612:00
–vulnrichment
[
  {
    "vendor": "h3js",
    "product": "h3",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/h3",
    "versions": [
      {
        "version": "2.0.1-rc.17",
        "status": "affected",
        "lessThan": "2.0.1-rc.18",
        "versionType": "semver"
      },
      {
        "version": "2.0.1-rc.18",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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06 Sep 2026 12:00Current
CVSS 45.3
CVSS 3.15.4
EPSS0.00271
SSVC
52