CVE-2026-59877 (GCVE-0-2026-59877)
Vulnerability from cvelistv5
Published
2026-07-08 15:28
Modified
2026-07-08 15:49
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.5 and 8.6.6, protobufjs parsed option names by advancing through schema tokens until reaching an = token without checking for end of input, so a crafted .proto schema that opens an option declaration and ends prematurely can cause parse, Root.load, or Root.loadSync to loop indefinitely. This issue is fixed in versions 7.6.5 and 8.6.6.
References
Impacted products
Vendor Product Version
protobufjs protobuf.js Version: >= 7.5.0, < 7.6.5
Version: >= 8.0.0, < 8.6.6
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