{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44293", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-05T17:39:31.112Z", "datePublished": "2026-05-13T14:43:33.342Z", "dateUpdated": "2026-05-13T14:43:33.342Z"}, "containers": {"cna": {"title": "protobufjs: Code injection through bytes field defaults in generated toObject code", "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm"}], "affected": [{"vendor": "protobufjs", "product": "protobuf.js", "versions": [{"version": "< 7.5.6", "status": "affected"}, {"version": ">= 8.0.0, < 8.0.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-13T14:43:33.342Z"}, "descriptions": [{"lang": "en", "value": "protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript for toObject conversion could include an unsafe expression derived from a schema-controlled bytes field default value. A crafted descriptor with a non-string default value for a bytes field could cause attacker-controlled code to be emitted into the generated conversion function. This vulnerability is fixed in 7.5.6 and 8.0.2."}], "source": {"advisory": "GHSA-66ff-xgx4-vchm", "discovery": "UNKNOWN"}}}}

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