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.
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-j3f2-48v5-ccww | protobufjs: Denial of Service via infinite loop in .proto option parsing |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 22 Jul 2026 12:15:00 +0000
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| References |
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| Metrics |
threat_severity
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threat_severity
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Fri, 10 Jul 2026 09:30:00 +0000
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| First Time appeared |
Protobuf
Protobuf protobuf |
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| Vendors & Products |
Protobuf
Protobuf protobuf |
Wed, 08 Jul 2026 16:30:00 +0000
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| Metrics |
ssvc
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Wed, 08 Jul 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | protobufjs: Denial of Service via infinite loop in .proto option parsing | |
| Weaknesses | CWE-835 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-08T15:49:27.814Z
Reserved: 2026-07-07T15:41:53.607Z
Link: CVE-2026-59877
Updated: 2026-07-08T15:49:24.549Z
No data.
OpenCVE Enrichment
Updated: 2026-07-26T17:45:17Z
Weaknesses
Github GHSA