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Package Instance

Lookup for vulnerable packages by Package URL.

Purlpkg:maven/org.apache.activemq/activemq-client@6.2.0
Typemaven
Namespaceorg.apache.activemq
Nameactivemq-client
Version6.2.0
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version6.2.4
Latest_non_vulnerable_version6.2.4
Affected_by_vulnerabilities
0
url VCID-92hs-e8rr-yke5
vulnerability_id VCID-92hs-e8rr-yke5
summary 
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://api.first.org/data/v1/epss?cve=CVE-2026-39304
reference_id
reference_type
scores
0
value 0.00056
scoring_system epss
scoring_elements 0.17908
published_at 2026-06-11T12:55:00Z
1
value 0.00056
scoring_system epss
scoring_elements 0.18067
published_at 2026-06-12T12:55:00Z
2
value 0.00056
scoring_system epss
scoring_elements 0.18083
published_at 2026-06-13T12:55:00Z
3
value 0.00056
scoring_system epss
scoring_elements 0.18059
published_at 2026-06-14T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-39304
2
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
3
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
4
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
5
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
6
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
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://activemq.apache.org/security-advisories.data/CVE-2026-39304-announcement.txt
reference_id CVE-2026-39304-announcement.txt
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
9
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/activemq-client@6.2.4
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
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-92hs-e8rr-yke5
1
url VCID-dmft-spq5-8khy
vulnerability_id VCID-dmft-spq5-8khy
summary 
Improper validation and restriction of a classpath path name vulnerability in 

 Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ.



In two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user provided "key" value could be constructed to traverse the classpath due to path concatenation. As a result, the application is exposed to a classpath path resource loading vulnerability that could potentially be chained together with another attack to lead to exploit.





This issue affects Apache ActiveMQ Client: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Broker: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ All: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Web: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ: before 5.19.3, from 6.0.0 before 6.2.2.

Users are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue. Note: 5.19.3 and 6.2.2 also fix this issue, but that is limited to non-Windows environments due to a path separator resolution bug fixed in 5.19.4 and 6.2.3.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33227.json
reference_id
reference_type
scores
0
value 4.3
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33227.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-33227
reference_id
reference_type
scores
0
value 0.00077
scoring_system epss
scoring_elements 0.23073
published_at 2026-06-11T12:55:00Z
1
value 0.00077
scoring_system epss
scoring_elements 0.23268
published_at 2026-06-12T12:55:00Z
2
value 0.00077
scoring_system epss
scoring_elements 0.2328
published_at 2026-06-13T12:55:00Z
3
value 0.00089
scoring_system epss
scoring_elements 0.25628
published_at 2026-06-14T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-33227
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33227
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33227
3
reference_url https://github.com/apache/activemq
reference_id
reference_type
scores
0
value 4.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/apache/activemq
4
reference_url https://nvd.nist.gov/vuln/detail/CVE-2026-33227
reference_id
reference_type
scores
0
value 4.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2026-33227
5
reference_url http://www.openwall.com/lists/oss-security/2026/04/06/4
reference_id
reference_type
scores
0
value 4.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url http://www.openwall.com/lists/oss-security/2026/04/06/4
6
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
7
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2455867
reference_id 2455867
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2455867
8
reference_url https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt
reference_id CVE-2026-33227-announcement.txt
reference_type
scores
0
value 4.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-07T14:04:21Z/
url https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt
9
reference_url https://github.com/advisories/GHSA-h2h4-5m64-m273
reference_id GHSA-h2h4-5m64-m273
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-h2h4-5m64-m273
fixed_packages
0
url pkg:maven/org.apache.activemq/activemq-client@6.2.2
purl pkg:maven/org.apache.activemq/activemq-client@6.2.2
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-92hs-e8rr-yke5
resource_url http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-client@6.2.2
aliases CVE-2026-33227, GHSA-h2h4-5m64-m273
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-dmft-spq5-8khy
Fixing_vulnerabilities
Risk_score4.0
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:maven/org.apache.activemq/activemq-client@6.2.0