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CVE-2026-56762

🗓️ 23 Jun 2026 12:13:06Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 4 Views

Hono before 4.12.12 does not validate cookie names in setCookie, serialize, and serializeSigned, causing malformed Set-Cookie headers and runtime errors.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-56762
23 Jun 202612:13
attackerkb
Cvelist
CVE-2026-56762 Hono - Missing Cookie Name Validation in setCookie()
23 Jun 202612:13
cvelist
EUVD
EUVD-2026-38443
23 Jun 202612:13
euvd
NVD
CVE-2026-56762
23 Jun 202613:16
nvd
Positive Technologies
PT-2026-51516
23 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-56762 Hono - Missing Cookie Name Validation in setCookie()
23 Jun 202612:13
vulnrichment
Vulners
CNA
Node
honohonoRange04.12.12
[
  {
    "vendor": "Hono",
    "product": "Hono",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/hono",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.12.12"
      },
      {
        "version": "4.12.12",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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23 Jun 2026 15:06Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3
CVSS 46.9
SSVC
4