CVE-2019-12406
Potential DOS attack due to unrestricted attachment count in messages
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
- Record
CVE-2019-12406- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-770
- Updated
- 2026-11-02
CVE List No score
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
- Record
CVE-2019-12406- Updated
- 2026-11-02
EUVDEUVD-2019-0728 No score
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
- Record
EUVD-2019-0728- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-58p8-9g59-q2hr
Potential DOS attack due to unrestricted attachment count in messages
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
- Record
GHSA-58p8-9g59-q2hr- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSV
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
- Record
CVE-2019-12406- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-58p8-9g59-q2hr
Potential DOS attack due to unrestricted attachment count in messages
Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count".
- Record
GHSA-58p8-9g59-q2hr- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.cxf:cxfMaven |
before 3.2.11 | 3.2.11 |
org.apache.cxf:cxfMaven |
3.3.0 up to 3.3.4 | 3.3.4 |
org.apache.cxf:apache-cxfMaven |
before 3.2.11 | 3.2.11 |
org.apache.cxf:apache-cxfMaven |
3.3.0 up to 3.3.4 | 3.3.4 |
org.apache.cxf:cxfMaven |
before 3.2.11, plus listed versions 2.0.102.0.112.0.122.0.132.0.6 Show 45 moreShow less2.0.72.0.82.0.92.12.1.12.1.102.1.22.1.32.1.42.1.52.1.62.1.72.1.82.1.92.22.2.12.2.102.2.112.2.122.2.22.2.32.2.42.2.52.2.62.2.72.2.82.2.92.3.02.3.12.3.102.3.112.3.22.3.32.3.42.3.52.3.62.3.72.3.82.3.92.4.02.4.12.4.102.4.22.4.32.4.4 |
3.2.11 |
org.apache.cxf:cxfMaven |
3.3.0 up to 3.3.4, plus listed versions 3.3.13.3.23.3.3 |
3.3.4 |
org.apache.cxf:apache-cxfMaven |
before 3.2.11, plus listed versions 2.0.102.0.112.0.122.0.132.0.6 Show 45 moreShow less2.0.72.0.82.0.92.12.1.12.1.102.1.22.1.32.1.42.1.52.1.62.1.72.1.82.1.92.22.2.12.2.102.2.112.2.122.2.22.2.32.2.42.2.52.2.62.2.72.2.82.2.92.3.02.3.12.3.102.3.112.3.22.3.32.3.42.3.52.3.62.3.72.3.82.3.92.4.02.4.12.4.102.4.22.4.32.4.4 |
3.2.11 |
org.apache.cxf:apache-cxfMaven |
3.3.0 up to 3.3.4, plus listed versions 3.3.13.3.23.3.3 |
3.3.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-12406 is a medium vulnerability (CVSS 6.5) in Apache Cxf, published November 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.26%, the 93rd percentile. Fixed in org.apache.cxf:cxf 3.2.11.
References
lists.apache.org/thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E
oracle.com/security-alerts/cpuapr2020.html
Show 20 moreShow less
cxf.apache.org/security-advisories.data/CVE-2019-12406.txt.asc
nvd.nist.gov/vuln/detail/CVE-2019-12406
github.com/advisories/GHSA-58p8-9g59-q2hr
Left out here: 206 versions. The JSON record has them.