{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-66274", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-07-24T11:29:06.255Z", "datePublished": "2026-08-05T05:29:44.681Z", "dateUpdated": "2026-08-06T15:37:40.997Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.qpid:proton-j", "product": "Apache Qpid Proton-J", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "0.34.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service.</p><p>This issue affects Apache Qpid Proton-J: through 0.34.1.</p><p>Users are recommended to upgrade to version 0.35.0, which fixes the issue.</p>"}], "value": "A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service.\n\nThis issue affects Apache Qpid Proton-J: through 0.34.1.\n\nUsers are recommended to upgrade to version 0.35.0, which fixes the issue."}], "metrics": [{"other": {"content": {"text": "important"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "description": "CWE-674 Uncontrolled Recursion", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-08-05T05:29:44.681Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5h"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache Qpid Proton-J: Unbounded type nesting can lead to pre-authentication stackoverflow", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/08/04/10"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-08-05T06:57:52.903Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-06T15:07:28.908414Z", "id": "CVE-2026-66274", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-06T15:37:40.997Z"}}]}}

{}

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{"bugzilla": {"description": "org.apache.qpid/proton-j: Apache Qpid Proton-J: Denial of Service via unbounded type nesting", "id": "2511337", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511337"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in Apache Qpid Proton-J. A remote attacker, without needing to authenticate, could exploit a vulnerability related to unbounded type nesting. This could lead to a StackOverflowError, causing the affected system to become unresponsive and resulting in a denial of service."], "name": "CVE-2026-66274", "package_state": [{"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Affected", "package_name": "amq-broker-bin.zip", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Affected", "package_name": "amq-broker-maven-repository.zip", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:amq_clients:2023", "fix_state": "Affected", "package_name": "proton-j", "product_name": "Red Hat AMQ Clients"}, {"cpe": "cpe:/a:redhat:camel_quarkus:3", "fix_state": "Affected", "package_name": "proton-j", "product_name": "Red Hat build of Apache Camel 4 for Quarkus 3"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "rhaf-camel-for-springboot-maven-repository.zip", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "rhaf-camel-maven-repository.zip", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "rhaf-camel-spring-boot-maven-repository.zip", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:quarkus:3", "fix_state": "Affected", "package_name": "proton-j", "product_name": "Red Hat build of Quarkus"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "proton-j", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}], "public_date": "2026-08-05T05:29:44Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-66274\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-66274\nhttps://lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5h"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.34.1]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache Qpid Proton-J", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "qpid_proton-j", "vendor": "apache"}], "created": "2026-08-05T07:45:03.521797+00:00", "updated": "2026-08-05T13:45:03.911692+00:00", "vendors": ["apache", "apache$PRODUCT$qpid_proton-j"]}