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CVE-2026-54269

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 r
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:25099d84977b4ebc1c3da112b7078916e6ce51dcfb8b96b1025b6591eee48d1b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-754","description":"CWE-754: Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-674","description":"CWE-674: Uncontrolled Recursion","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"protobuf.js","vendor":"protobufjs","versions":[{"status":"affected","version":"< 7.6.3"},{"status":"affected","version":">= 8.0.0, < 8.6.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-754","description":"CWE-754: Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-674","description":"CWE-674: Uncontrolled Recursion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-f38q-mgvj-vph7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-f38q-mgvj-vph7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5b49dc7daf26bae22457ad2fe12b3e774ed236b0f0be27bd18be01d45599f970 · sha256:ebd06675f657df8c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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