{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-67589", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-07-29T20:16:43.082Z", "datePublished": "2026-08-05T05:28:15.054Z", "dateUpdated": "2026-08-06T15:37:47.356Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.qpid:protonj2", "product": "Apache Qpid ProtonJ2", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "1.1.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Apache Qpid security team"}, {"lang": "en", "type": "reporter", "value": "xxy010605@gmail.com"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<div>A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.</div><div>This issue affects Apache Qpid ProtonJ2: through 1.1.0.</div><div>Users are recommended to upgrade to version 1.2.0, which fixes the issue.</div>"}], "value": "A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue."}], "metrics": [{"other": {"content": {"text": "important"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-789", "description": "CWE-789 Memory Allocation with Excessive Size Value", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-08-05T05:28:15.054Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/bs24x4778dh72xtfs299cy8krvdlo47q"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache Qpid ProtonJ2: Type size/count handling can lead to excessive allocation pre-authentication", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/08/04/28"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-08-05T06:58:14.837Z"}}, {"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": "2026-08-06T15:06:05.943152Z", "id": "CVE-2026-67589", "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": "2026-08-06T15:37:47.356Z"}}]}}

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{"bugzilla": {"description": "org.apache.qpid/protonj2: Apache Qpid ProtonJ2: Denial of Service via excessive memory allocation", "id": "2511321", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511321"}, "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 ProtonJ2. A remote, unauthenticated attacker could exploit a vulnerability in the handling of type sizes and counts, leading to excessive memory allocation. This could result in a denial of service (DoS), making the affected system unavailable to legitimate users."], "name": "CVE-2026-67589", "package_state": [{"cpe": "cpe:/a:redhat:amq_clients:2023", "fix_state": "Affected", "package_name": "protonj2", "product_name": "Red Hat AMQ Clients"}], "public_date": "2026-08-05T05:28:15Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-67589\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-67589\nhttps://lists.apache.org/thread/bs24x4778dh72xtfs299cy8krvdlo47q"], "threat_severity": "Important"}