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CVE-2026-27840

🗓️ 26 Feb 2026 00:27:08Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 18 Views

ZITADEL's opaque v2 tokens truncated to 80 chars remain valid; fix in 3.4.7 and 4.11.0 verifies user_id against session data.

Related
Detection
Affected
Refs
NVD
Vulners
Node
zitadelzitadelRange2.31.02.71.19
OR
zitadelzitadelRange3.0.03.4.7
OR
zitadelzitadelRange4.0.04.11.0
[
  {
    "vendor": "zitadel",
    "product": "zitadel",
    "versions": [
      {
        "version": ">= 4.0.0, < 4.11.0",
        "status": "affected"
      },
      {
        "version": ">= 3.0.0, < 3.4.7",
        "status": "affected"
      },
      {
        "version": ">= 2.31.0, <= 2.71.19",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 10:27Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.14.3
EPSS0.00142
18