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CVE-2026-56763 Hono - Prototype Pollution via __proto__ Key in parseBody with dot Option

🗓️ 11 Jul 2026 13:00:59Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 54 Views

Hono before 4.12.7 allows __proto__ in parseBody with dot option, enabling prototype pollution via unsafe merge.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cgr
Chainguard
CVE-2026-56763 vulnerabilities
3 Oct 202620:54
–cgr
circl
Circl
CVE-2026-56763
11 Jul 202614:43
–circl
cve
CVE
CVE-2026-56763
11 Jul 202613:00
–cve
euvd
EUVD
EUVD-2026-43173
11 Jul 202613:00
–euvd
github
Github Security Blog
Duplicate Advisory: Hono vulnerable to Prototype Pollution possible through __proto__ key allowed in parseBody({ dot: true })
11 Jul 202615:30
–github
github
Github Security Blog
Hono vulnerable to Prototype Pollution possible through __proto__ key allowed in parseBody({ dot: true })
11 Mar 202600:31
–github
mend
Mend
CVE-2026-56763
11 Jul 202613:00
–mend
nvd
NVD
CVE-2026-56763
11 Jul 202614:16
–nvd
osv_cga
osv_cga
CGA-2956-XQWV-CW6V
12 Mar 202600:57
–osv_cga
osv_cga
osv_cga
CGA-35J4-3MPJ-C2QQ
11 Mar 202623:37
–osv_cga
Rows per page
[
  {
    "vendor": "Hono",
    "product": "Hono",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/hono",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.12.7"
      },
      {
        "version": "4.12.7",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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11 Jul 2026 13:00Current
CVSS 3.14.8
CVSS 46.3
EPSS0.00273
SSVC
54