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CVE-2026-79662

🗓️ 25 Aug 2026 11:33:26Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 47 Views🌐 WEB

Ech0 before 4.7.3 OAuth redirect URI validation bypass leaking tokens via attacker-influenced path.

Related
Detection
Affected
Refs
Paths
Vulners
CNA
Node
lin-snowech0Range0–4.7.3
[
  {
    "vendor": "lin-snow",
    "product": "Ech0",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:golang/github.com/lin-snow/Ech0",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.7.3"
      },
      {
        "version": "4.7.3",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
codequery param/api/auth/exchangeOAuth redirect_uri validation flaw (parseAndValidateClientRedirect) that only checks scheme/host and embeds the redirect_uri in the signed state, allowing an attacker to redirect victims to an attacker-controlled path and then use the one-time code at the /api/auth/exchange endpoint to obtain tokens.CWE-601

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31 Aug 2026 20:50Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18
CVSS 48.8
EPSS0.00321
SSVC
47