{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-110747", "assignerOrgId": "36c7be3b-2937-45df-85ea-ca7133ea542c", "state": "PUBLISHED", "assignerShortName": "HeroDevs", "dateReserved": "2026-10-14T16:51:08.427Z", "datePublished": "2026-10-28T00:02:32.462Z", "dateUpdated": "2026-10-28T00:02:32.462Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "36c7be3b-2937-45df-85ea-ca7133ea542c", "shortName": "HeroDevs", "dateUpdated": "2026-10-28T00:02:32.462Z"}, "title": "jackson-dataformat-protobuf: integer overflow in ProtobufParser._readStringKey() allows OutOfMemoryError from an 8-byte payload", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-130", "descriptions": [{"lang": "en", "value": "CAPEC-130 Excessive Allocation"}]}], "affected": [{"vendor": "FasterXML", "product": "jackson-dataformat-protobuf", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "com.fasterxml.jackson.dataformat:jackson-dataformat-protobuf", "repo": "https://github.com/FasterXML/jackson-dataformats-binary", "versions": [{"status": "affected", "version": "2.21.6", "lessThan": "2.21.8", "versionType": "maven"}, {"status": "unaffected", "version": "2.21.8", "versionType": "maven"}, {"status": "affected", "version": "2.22.0", "lessThan": "2.22.4", "versionType": "maven"}, {"status": "unaffected", "version": "2.22.4", "versionType": "maven"}], "defaultStatus": "unaffected"}, {"vendor": "FasterXML", "product": "jackson-dataformat-protobuf", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "tools.jackson.dataformat:jackson-dataformat-protobuf", "repo": "https://github.com/FasterXML/jackson-dataformats-binary", "versions": [{"status": "affected", "version": "3.1.6", "lessThan": "3.1.8", "versionType": "maven"}, {"status": "unaffected", "version": "3.1.8", "versionType": "maven"}, {"status": "affected", "version": "3.2.2", "lessThan": "3.2.4", "versionType": "maven"}, {"status": "unaffected", "version": "3.2.4", "versionType": "maven"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) <= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the text buffer to the declared length via TextBuffer.expandCurrentSegment and Arrays.copyOf, throwing OutOfMemoryError: Requested array size exceeds VM limit.\n\n\n\nAn 8-byte malformed message containing a map entry with a declared key length of 0x7FFFFFFF is sufficient. Configured StreamReadConstraints, including maxStringLength, maxNameLength, maxDocumentLength and maxNestingDepth, do not prevent the failure. Applications running with -XX:+ExitOnOutOfMemoryError terminate the JVM.\n\n\n\nThis is the same integer-overflow pattern addressed for other call sites in the remediation associated with CVE-2026-104016 and CVE-2026-104017; the map-key call site was corrected on the 3.x branches only, leaving the corresponding 2.x branches unguarded. Release lines 2.18, 2.19 and 2.20 do not contain _readStringKey() and are not affected by this vector. No privileges or user interaction beyond the ability to submit data for parsing are required. The 3.0 release line and 3.1.0-3.1.5 / 3.2.0-3.2.1 do not contain _readStringKey() and are therefore not affected; the method first appears in 3.1.6 and 3.2.2, mirroring its introduction at 2.21.6 on the 2.x side.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) &lt;= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the text buffer to the declared length via TextBuffer.expandCurrentSegment and Arrays.copyOf, throwing OutOfMemoryError: Requested array size exceeds VM limit.</p><p>An 8-byte malformed message containing a map entry with a declared key length of 0x7FFFFFFF is sufficient. Configured StreamReadConstraints, including maxStringLength, maxNameLength, maxDocumentLength and maxNestingDepth, do not prevent the failure. Applications running with -XX:+ExitOnOutOfMemoryError terminate the JVM.</p><p>This is the same integer-overflow pattern addressed for other call sites in the remediation associated with CVE-2026-104016 and CVE-2026-104017; the map-key call site was corrected on the 3.x branches only, leaving the corresponding 2.x branches unguarded. Release lines 2.18, 2.19 and 2.20 do not contain _readStringKey() and are not affected by this vector. No privileges or user interaction beyond the ability to submit data for parsing are required. The 3.0 release line and 3.1.0-3.1.5 / 3.2.0-3.2.1 do not contain _readStringKey() and are therefore not affected; the method first appears in 3.1.6 and 3.2.2, mirroring its introduction at 2.21.6 on the 2.x side.</p>"}]}], "tags": ["x_open-source"], "references": [{"url": "https://github.com/FasterXML/jackson-dataformats-binary/security/advisories/GHSA-fv7v-rrmh-4qcv", "name": "GHSA-fv7v-rrmh-4qcv", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}], "timeline": [{"time": "2026-10-20T22:45:00.000Z", "lang": "en", "value": "GHSA-fv7v-rrmh-4qcv published by the maintainer in FasterXML/jackson-dataformats-binary"}], "credits": [{"lang": "en", "value": "bewithyash", "type": "reporter"}, {"lang": "en", "value": "cowtowncoder (Tatu Saloranta)", "type": "coordinator"}], "source": {"advisory": "GHSA-fv7v-rrmh-4qcv", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "com.fasterxml.jackson.dataformat:jackson-dataformat-protobuf", "product": "jackson-dataformat-protobuf", "repo": "https://github.com/FasterXML/jackson-dataformats-binary", "vendor": "FasterXML", "versions": [{"lessThan": "2.21.8", "status": "affected", "version": "2.21.6", "versionType": "maven"}, {"status": "unaffected", "version": "2.21.8", "versionType": "maven"}, {"lessThan": "2.22.4", "status": "affected", "version": "2.22.0", "versionType": "maven"}, {"status": "unaffected", "version": "2.22.4", "versionType": "maven"}]}, {"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "tools.jackson.dataformat:jackson-dataformat-protobuf", "product": "jackson-dataformat-protobuf", "repo": "https://github.com/FasterXML/jackson-dataformats-binary", "vendor": "FasterXML", "versions": [{"lessThan": "3.1.8", "status": "affected", "version": "3.1.6", "versionType": "maven"}, {"status": "unaffected", "version": "3.1.8", "versionType": "maven"}, {"lessThan": "3.2.4", "status": "affected", "version": "3.2.2", "versionType": "maven"}, {"status": "unaffected", "version": "3.2.4", "versionType": "maven"}]}], "source": "36c7be3b-2937-45df-85ea-ca7133ea542c"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) <= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the text buffer to the declared length via TextBuffer.expandCurrentSegment and Arrays.copyOf, throwing OutOfMemoryError: Requested array size exceeds VM limit.\n\n\n\nAn 8-byte malformed message containing a map entry with a declared key length of 0x7FFFFFFF is sufficient. Configured StreamReadConstraints, including maxStringLength, maxNameLength, maxDocumentLength and maxNestingDepth, do not prevent the failure. Applications running with -XX:+ExitOnOutOfMemoryError terminate the JVM.\n\n\n\nThis is the same integer-overflow pattern addressed for other call sites in the remediation associated with CVE-2026-104016 and CVE-2026-104017; the map-key call site was corrected on the 3.x branches only, leaving the corresponding 2.x branches unguarded. Release lines 2.18, 2.19 and 2.20 do not contain _readStringKey() and are not affected by this vector. No privileges or user interaction beyond the ability to submit data for parsing are required. The 3.0 release line and 3.1.0-3.1.5 / 3.2.0-3.2.1 do not contain _readStringKey() and are therefore not affected; the method first appears in 3.1.6 and 3.2.2, mirroring its introduction at 2.21.6 on the 2.x side."}], "id": "CVE-2026-110747", "lastModified": "2026-10-28T01:16:55.017", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "36c7be3b-2937-45df-85ea-ca7133ea542c", "type": "Secondary"}]}, "published": "2026-10-28T01:16:55.017", "references": [{"source": "36c7be3b-2937-45df-85ea-ca7133ea542c", "url": "https://github.com/FasterXML/jackson-dataformats-binary/security/advisories/GHSA-fv7v-rrmh-4qcv"}], "sourceIdentifier": "36c7be3b-2937-45df-85ea-ca7133ea542c", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "36c7be3b-2937-45df-85ea-ca7133ea542c", "type": "Secondary"}]}

{}

{"created": "2026-10-28T01:30:14.279422+00:00", "updated": "2026-10-28T01:30:14.279430+00:00", "vendors": []}