Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/351329?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/351329?format=api", "vulnerability_id": "VCID-cm77-qbk4-63ff", "summary": "Apache ActiveMQ: Denial of Service via Out of Memory vulnerability\nDenial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ.\n\nActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes the broker to exhaust all its memory in the SSL engine leading to DoS.\n\nNote: TLS versions before TLSv1.3 (such as TLSv1.2) are broken but are not vulnerable to OOM. Previous TLS versions require a full handshake renegotiation which causes a connection to hang but not OOM. This is fixed as well.\nThis issue affects Apache ActiveMQ Client: before 5.19.4, from 6.0.0 before 6.2.4; Apache ActiveMQ Broker: before 5.19.4, from 6.0.0 before 6.2.4; Apache ActiveMQ: before 5.19.4, from 6.0.0 before 6.2.4.\n\nUsers are recommended to upgrade to version 6.2.4 or 5.19.5, which fixes the issue.", "aliases": [ { "alias": "CVE-2026-39304" }, { "alias": "GHSA-5568-6qcg-g7fx" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/1060898?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-all@5.19.4", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-ckcj-176v-6fcy" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-all@5.19.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060869?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-all@6.2.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-all@6.2.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060896?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-broker@5.19.4", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-ckcj-176v-6fcy" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-broker@5.19.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060897?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-broker@6.2.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-broker@6.2.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060894?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-client@5.19.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-client@5.19.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060895?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-client@6.2.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-client@6.2.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060899?format=api", "purl": "pkg:maven/org.apache.activemq/apache-activemq@5.19.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/apache-activemq@5.19.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060868?format=api", "purl": "pkg:maven/org.apache.activemq/apache-activemq@6.2.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/apache-activemq@6.2.4" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/147452?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-all@6.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bktu-qch2-5ugv" }, { "vulnerability": "VCID-ckcj-176v-6fcy" }, { "vulnerability": "VCID-cm77-qbk4-63ff" }, { "vulnerability": "VCID-crp7-g677-xkg4" }, { "vulnerability": "VCID-qpr5-vxte-dqea" }, { "vulnerability": "VCID-qw4u-5rxe-nuad" }, { "vulnerability": "VCID-tyaw-6dpw-mudm" }, { "vulnerability": "VCID-ub8t-cg1x-nkec" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-all@6.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/1055719?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-broker@6.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-ckcj-176v-6fcy" }, { "vulnerability": "VCID-cm77-qbk4-63ff" }, { "vulnerability": "VCID-crp7-g677-xkg4" }, { "vulnerability": "VCID-qpr5-vxte-dqea" }, { "vulnerability": "VCID-qw4u-5rxe-nuad" }, { "vulnerability": "VCID-ub8t-cg1x-nkec" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-broker@6.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/570396?format=api", "purl": "pkg:maven/org.apache.activemq/activemq-client@6.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-cm77-qbk4-63ff" }, { "vulnerability": "VCID-q6zs-spcv-v7ey" }, { "vulnerability": "VCID-qpr5-vxte-dqea" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-client@6.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/145330?format=api", "purl": "pkg:maven/org.apache.activemq/apache-activemq@6.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bktu-qch2-5ugv" }, { "vulnerability": "VCID-cm77-qbk4-63ff" }, { "vulnerability": "VCID-crp7-g677-xkg4" }, { "vulnerability": "VCID-qw4u-5rxe-nuad" }, { "vulnerability": "VCID-tyaw-6dpw-mudm" }, { "vulnerability": "VCID-ub8t-cg1x-nkec" }, { "vulnerability": "VCID-wema-7dnk-bkhy" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/apache-activemq@6.0.0" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-39304.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-39304.json" }, { "reference_url": "https://activemq.apache.org/security-advisories.data/CVE-2026-39304-announcement.txt", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-10T14:10:10Z/" } ], "url": "https://activemq.apache.org/security-advisories.data/CVE-2026-39304-announcement.txt" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-39304", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00017", "scoring_system": "epss", "scoring_elements": "0.04079", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00017", "scoring_system": "epss", "scoring_elements": "0.04142", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00017", "scoring_system": "epss", "scoring_elements": "0.04111", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00017", "scoring_system": "epss", "scoring_elements": "0.04093", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.12158", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.12121", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.12089", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00052", "scoring_system": "epss", "scoring_elements": "0.16292", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00052", "scoring_system": "epss", "scoring_elements": "0.16313", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00053", "scoring_system": "epss", "scoring_elements": "0.16311", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00053", "scoring_system": "epss", "scoring_elements": "0.16535", "published_at": "2026-05-09T12:55:00Z" }, { "value": "0.00053", "scoring_system": "epss", "scoring_elements": "0.16429", "published_at": "2026-05-07T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-39304" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-39304", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-39304" }, { "reference_url": "https://github.com/apache/activemq", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/apache/activemq" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39304", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39304" }, { "reference_url": "http://www.openwall.com/lists/oss-security/2026/04/09/17", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://www.openwall.com/lists/oss-security/2026/04/09/17" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1136024", "reference_id": "1136024", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1136024" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457275", "reference_id": "2457275", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457275" }, { "reference_url": "https://github.com/advisories/GHSA-5568-6qcg-g7fx", "reference_id": "GHSA-5568-6qcg-g7fx", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-5568-6qcg-g7fx" } ], "weaknesses": [ { "cwe_id": 400, "name": "Uncontrolled Resource Consumption", "description": "The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources." }, { "cwe_id": 770, "name": "Allocation of Resources Without Limits or Throttling", "description": "The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor." } ], "exploits": [], "severity_range_score": "7.0 - 8.9", "exploitability": "0.5", "weighted_severity": "8.0", "risk_score": 4.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-cm77-qbk4-63ff" }