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CVE-2026-59876 protobufjs: Text Format string map parsing can mutate returned map object prototype

🗓️ 08 Jul 2026 15:31:11Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 47 Views

CVE-2026-59876: protobufjs Text Format maps could mutate prototype via __proto__ key; fixed in 8.6.5.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-59876
8 Jul 202615:31
attackerkb
cgr
Chainguard
CVE-2026-59876 vulnerabilities
31 Jul 202602:17
cgr
cve
CVE
CVE-2026-59876
8 Jul 202615:31
cve
euvd
EUVD
EUVD-2026-42311
20 Jul 202622:04
euvd
github
Github Security Blog
protobufjs: Text Format string map parsing can mutate returned map object prototype
20 Jul 202622:04
github
nvd
NVD
CVE-2026-59876
8 Jul 202616:16
nvd
osv
OSV
CGA-V969-CF4M-H8W6
30 Jul 202621:26
osv
osv
OSV
CLEANSTART-2026-YP71540 Security fixes in n8n 2.28.0-r2
13 Aug 202612:10
osv
osv
OSV
GHSA-JFJ6-75FJ-8934 protobufjs: Text Format string map parsing can mutate returned map object prototype
20 Jul 202622:04
osv
osv
OSV
MINI-8G7C-2P9H-899G
21 Jul 202613:43
osv
Rows per page
[
  {
    "vendor": "protobufjs",
    "product": "protobuf.js",
    "versions": [
      {
        "version": ">= 8.2.0, < 8.6.5",
        "status": "affected"
      }
    ]
  }
]

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