CVE-2023-36665

CVE-2023-36665 affects protobuf.js (protobufjs) 6.10.0 through 7.x, before 7.2.5. A user‑controlled protobuf message can pollute Object.prototype by adding/overwriting its data and functions. Exploitation paths include: 1) parse, 2) loading .proto files via load/loadSync, or 3) untrusted input to...

CVE-2026-41242

CVE-2026-41242 – protobufjs arbitrary code execution . The vulnerability affects protobufjs where, in versions before 8.0.1 and 7.5.5, an attacker can inject arbitrary code through the "type" fields of protobuf definitions. This code can execute during object decoding of those definitions, enabli...

CVE-2022-25878

CVE-2022-25878 affects protobufjs with Prototype Pollution (Object.prototype) via untrusted input to util.setProperty, ReflectionObject.setParsedOption, or .proto parsing. Connected docs show a related entry (CVE-2023-36665) describing protobufjs 6.10.0–7.x before 7.2.5 as vulnerable to prototype...

CVE-2018-3738

protobufjs is affected by a Denial of Service via a regular expression denial of service when parsing crafted invalid .proto files. Affected versions are prior to 5.0.3 and prior to 6.8.6. Remediation: upgrade to protobufjs 5.0.3 or later, or 6.8.6 or later. The issue arises from ReDoS during par...

CVE-2026-44289

CVE-2026-44289 affects protobufjs. Before versions 7.5.6 and 8.0.2, decoding nested protobuf data could recurse without a depth limit, affecting both skipping unknown group fields and generated decoding of nested message fields. A crafted binary payload could exhaust the JavaScript call stack, ca...

CVE-2026-44290

CVE-2026-44290 affects protobufjs, where certain schema option paths could traverse inherited properties during option processing, potentially corrupting process-wide built-in functionality. This vulnerability exists in versions prior to 7.5.6 and 8.0.2 and can enable a crafted protobuf schema or...

CVE-2026-44293

CVE-2026-44293 affects protobufjs: prior to versions 7.5.6 and 8.0.2, generated JavaScript for toObject conversion could emit attacker-controlled code from a schema-controlled bytes field default value. A crafted descriptor with a non-string default for a bytes field may cause arbitrary JavaScrip...

CVE-2026-54269

CVE-2026-54269 affects protobufjs. Prior to versions 8.6.0 and 7.6.3 , schema-derived names could collide with runtime helper properties (e.g., fields named hasOwnProperty, names like $type, and rpcCall). When loaded schemas are used, protobufjs could read schema-controlled data where an own-prop...

CVE-2026-44292

The CVE-2026-44292 issue affects protobufjs where generated message constructors copied enumerable properties from a provided object without filtering the proto key. This can let attackers pass an attacker-controlled plain object to a message constructor, causing per-instance prototype injection ...

CVE-2026-48712

The CVE-2026-48712 vulnerability affects protobufjs (JavaScript) in the toObject() conversion path and the google.protobuf.Any JSON conversion path. Prior to versions 7.6.1 and 8.4.1, protobufjs could recurse without a depth limit when converting decoded messages to plain objects/JSON, allowing a...

CVE-2026-44288

CVE-2026-44288 affects protobufjs: prior to versions 7.5.6 and 8.0.2, its minimal UTF-8 decoder accepted overlong UTF-8 byte sequences and decoded them to canonical characters instead of replacing them. If an attacker supplies protobuf binary data decoded through that path, downstream checks that...

CVE-2026-44294

CVE-2026-44294 affects protobufjs. Prior to versions 7.5.6 and 8.0.2, generated JavaScript property accessors from schema-controlled field and oneof names did not escape certain control characters in field names, which could cause generated encode, decode, verify, or conversion functions to fail ...

CVE-2026-45740

Protobufjs vulnerability CVE-2026-45740 arises from unbounded recursion when expanding deeply nested JSON descriptors (Root.fromJSON(), Namespace.addJSON()). Before versions 7.5.8 and 8.2.0, crafted JSON descriptors could exhaust the JavaScript call stack, causing a Denial of Service. The issue a...

CVE-2026-44291

CVE-2026-44291 affects protobufjs: prior to versions 7.5.6 and 8.0.2, internal type lookup tables used by generated encode/decode functions could be polluted via Object.prototype, allowing attacker-controlled inherited properties to influence protobuf type information and potentially emit attacke...

CVE-2026-54270

CVE-2026-54270 concerns protobufjs, where versions 8.2.0–8.4.2 preserved unknown wire elements in message.$unknowns during binary decode and lacked a decode-time option to discard them. This could allow crafted protobuf payloads with many unknown fields to cause decoded messages to retain memory ...

CVE-2026-59877

Summary: The CVE affects protobufjs, where the .proto parser could enter an infinite loop. Affected component: protobufjs (parsing of protobuf definitions to JS functions). Root cause: while parsing option declarations, the parser advances through tokens until an '=' is found without checking for...

CVE-2026-59876

CVE-2026-59876 affects protobufjs (Text Format extension) where, from 8.2.0 through 8.6.5, string-keyed map entries were parsed via ordinary property assignment, allowing a map entry with key proto to mutate the prototype of the returned map instead of creating an own entry in protobufjs/ext/text...