CVE-2026-54269
- Source
- https://cve.org/CVERecord?id=CVE-2026-54269
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54269.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-54269
- Aliases
- Downstream
- Related
- Published
- 2026-06-22T16:23:24.383Z
- Modified
- 2026-06-24T03:54:01.600525067Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- protobufjs: Schema-derived names can shadow runtime-significant properties
- Details
-
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.
- Database specific
{ "cwe_ids": [ "CWE-674", "CWE-754" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54269.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/protobufjs/protobuf.js
Affected ranges
- Type
- GIT
- Repo
- https://github.com/protobufjs/protobuf.js
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "7.6.3" }, { "introduced": "8.0.0" }, { "fixed": "8.6.0" } ], "source": "AFFECTED_FIELD" }