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Lookup for vulnerable packages by Package URL.

Purlpkg:maven/org.apache.activemq/apache-activemq@6.2.4
Typemaven
Namespaceorg.apache.activemq
Nameapache-activemq
Version6.2.4
Qualifiers
Subpath
Is_vulnerablefalse
Next_non_vulnerable_versionnull
Latest_non_vulnerable_versionnull
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-cm77-qbk4-63ff
vulnerability_id VCID-cm77-qbk4-63ff
summary 
Apache ActiveMQ: Denial of Service via Out of Memory vulnerability
Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ.

ActiveMQ 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.

Note: 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.
This 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.

Users are recommended to upgrade to version 6.2.4 or 5.19.5, which fixes the issue.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-39304.json
reference_id
reference_type
scores
0
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
1
reference_url https://activemq.apache.org/security-advisories.data/CVE-2026-39304-announcement.txt
reference_id
reference_type
scores
0
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
1
value HIGH
scoring_system generic_textual
scoring_elements
2
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
2
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-39304
reference_id
reference_type
scores
0
value 0.00017
scoring_system epss
scoring_elements 0.04079
published_at 2026-04-21T12:55:00Z
1
value 0.0004
scoring_system epss
scoring_elements 0.12089
published_at 2026-04-13T12:55:00Z
2
value 0.0004
scoring_system epss
scoring_elements 0.12121
published_at 2026-04-12T12:55:00Z
3
value 0.0004
scoring_system epss
scoring_elements 0.12158
published_at 2026-04-11T12:55:00Z
4
value 0.00052
scoring_system epss
scoring_elements 0.16313
published_at 2026-04-18T12:55:00Z
5
value 0.00052
scoring_system epss
scoring_elements 0.16292
published_at 2026-04-16T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-39304
3
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
4
reference_url https://github.com/apache/activemq
reference_id
reference_type
scores
0
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
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/apache/activemq
5
reference_url https://nvd.nist.gov/vuln/detail/CVE-2026-39304
reference_id
reference_type
scores
0
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
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2026-39304
6
reference_url http://www.openwall.com/lists/oss-security/2026/04/09/17
reference_id
reference_type
scores
0
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
1
value HIGH
scoring_system generic_textual
scoring_elements
url http://www.openwall.com/lists/oss-security/2026/04/09/17
7
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
8
reference_url https://github.com/advisories/GHSA-5568-6qcg-g7fx
reference_id GHSA-5568-6qcg-g7fx
reference_type
scores
0
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-5568-6qcg-g7fx
fixed_packages
0
url pkg:maven/org.apache.activemq/apache-activemq@5.19.4
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
1
url pkg:maven/org.apache.activemq/apache-activemq@6.2.4
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
aliases CVE-2026-39304, GHSA-5568-6qcg-g7fx
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-cm77-qbk4-63ff
1
url VCID-tyaw-6dpw-mudm
vulnerability_id VCID-tyaw-6dpw-mudm
summary 
Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT vulnerable to Integer Overflow or Wraparound
Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT.

The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 (and future 5.19.x) releases but was missed for all 6.0.0+ versions. This issue affects Apache ActiveMQ: from 6.0.0 before 6.2.4; Apache ActiveMQ All: from 6.0.0 before 6.2.4; Apache ActiveMQ MQTT: from 6.0.0 before 6.2.4.

Users are recommended to upgrade to version 6.2.4 or a 5.19.x version starting with 5.19.2 or later (currently latest is 5.19.5), which fixes the issue.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-40046.json
reference_id
reference_type
scores
0
value 5.4
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-40046.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-40046
reference_id
reference_type
scores
0
value 0.00038
scoring_system epss
scoring_elements 0.11399
published_at 2026-04-11T12:55:00Z
1
value 0.00038
scoring_system epss
scoring_elements 0.11336
published_at 2026-04-13T12:55:00Z
2
value 0.00038
scoring_system epss
scoring_elements 0.11365
published_at 2026-04-12T12:55:00Z
3
value 0.0005
scoring_system epss
scoring_elements 0.15298
published_at 2026-04-21T12:55:00Z
4
value 0.0005
scoring_system epss
scoring_elements 0.15243
published_at 2026-04-16T12:55:00Z
5
value 0.0005
scoring_system epss
scoring_elements 0.15247
published_at 2026-04-18T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-40046
2
reference_url https://lists.apache.org/thread/zdntj5rcgjjzrpow84o339lzldy68zrg
reference_id
reference_type
scores
0
value 5.4
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
1
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
2
value MODERATE
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-10T19:39:38Z/
url https://lists.apache.org/thread/zdntj5rcgjjzrpow84o339lzldy68zrg
3
reference_url https://nvd.nist.gov/vuln/detail/CVE-2026-40046
reference_id
reference_type
scores
0
value 5.4
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2026-40046
4
reference_url https://www.cve.org/CVERecord?id=CVE-2025-66168
reference_id
reference_type
scores
0
value 5.4
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
1
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
2
value MODERATE
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-10T19:39:38Z/
url https://www.cve.org/CVERecord?id=CVE-2025-66168
5
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2456950
reference_id 2456950
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2456950
6
reference_url https://activemq.apache.org/security-advisories.data/CVE-2026-40046-announcement.txt
reference_id CVE-2026-40046-announcement.txt
reference_type
scores
0
value 5.4
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
1
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
2
value MODERATE
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-10T19:39:38Z/
url https://activemq.apache.org/security-advisories.data/CVE-2026-40046-announcement.txt
7
reference_url https://github.com/advisories/GHSA-xvqc-pp94-fmpx
reference_id GHSA-xvqc-pp94-fmpx
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-xvqc-pp94-fmpx
fixed_packages
0
url pkg:maven/org.apache.activemq/apache-activemq@6.2.4
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
aliases CVE-2026-40046, GHSA-xvqc-pp94-fmpx
risk_score 3.4
exploitability 0.5
weighted_severity 6.8
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-tyaw-6dpw-mudm
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/apache-activemq@6.2.4