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CVE-2026-59876

🗓️ 08 Jul 2026 15:31:11Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

CVE-2026-59876 in protobufjs Text Format allows prototype mutation through a string key __proto__; fixed in version 8.6.5.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-59876
8 Jul 202615:31
attackerkb
Cvelist
CVE-2026-59876 protobufjs: Text Format string map parsing can mutate returned map object prototype
8 Jul 202615:31
cvelist
EUVD
EUVD-2026-42311
8 Jul 202615:31
euvd
NVD
CVE-2026-59876
8 Jul 202616:16
nvd
Positive Technologies
PT-2026-56496
8 Jul 202600:00
ptsecurity
Vulners
Node
protobufjsprotobuf.jsRange8.2.08.6.5
[
  {
    "vendor": "protobufjs",
    "product": "protobuf.js",
    "versions": [
      {
        "version": ">= 8.2.0, < 8.6.5",
        "status": "affected"
      }
    ]
  }
]

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08 Jul 2026 16:16Current
6Medium risk
Vulners AI Score6
CVSS 3.14.8
5