protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected names are fields named hasOwnProperty, field or oneof names such as $type when loaded through protobufjs JSON/reflection descriptors, and service methods whose generated helper name is rpcCall. When affected message or service types were used, protobufjs could read schema-controlled data where it expected an own-property helper, reflected type metadata, or the base RPC helper. This could cause deterministic exceptions or recursive calls in affected decode post-checks, verification, object conversion, reflected JSON serialization, or protobufjs RPC helper invocation. This vulnerability is fixed in 8.6.0 and 7.6.3.
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History
Mon, 29 Jun 2026 12:15:00 +0000
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| Weaknesses | CWE-606 | |
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threat_severity
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threat_severity
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Wed, 24 Jun 2026 16:45:00 +0000
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Protobuf
Protobuf protobuf |
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Protobuf
Protobuf protobuf |
Tue, 23 Jun 2026 16:30:00 +0000
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ssvc
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Mon, 22 Jun 2026 17:30:00 +0000
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| Description | protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected names are fields named hasOwnProperty, field or oneof names such as $type when loaded through protobufjs JSON/reflection descriptors, and service methods whose generated helper name is rpcCall. When affected message or service types were used, protobufjs could read schema-controlled data where it expected an own-property helper, reflected type metadata, or the base RPC helper. This could cause deterministic exceptions or recursive calls in affected decode post-checks, verification, object conversion, reflected JSON serialization, or protobufjs RPC helper invocation. This vulnerability is fixed in 8.6.0 and 7.6.3. | |
| Title | protobufjs: Schema-derived names can shadow runtime-significant properties | |
| Weaknesses | CWE-674 CWE-754 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-06-22T16:23:24.383Z
Updated: 2026-06-23T16:09:36.165Z
Reserved: 2026-06-12T17:13:32.279Z
Link: CVE-2026-54269
Updated: 2026-06-23T16:07:08.694Z
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