CVE-2019-4052
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover...
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.
- Record
CVE-2019-4052- CVSS 3.0
- 8.2 High
CVSS:3.0/C:H/I:L/S:U/AV:N/PR:N/AC:L/UI:N/A:N/RC:C/RL:O/E:U - Updated
- 2026-11-02
EUVDEUVD-2019-13659
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.
- Record
EUVD-2019-13659- CVSS 3.0
- 8.2 High
CVSS:3.0/C:H/I:L/S:U/AV:N/PR:N/AC:L/UI:N/A:N/RC:C/RL:O/E:U - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xf58-rqhh-pcmh
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover...
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.
- Record
GHSA-xf58-rqhh-pcmh- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
NVD
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.
- Record
CVE-2019-4052- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 3.0
- 8.2 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-4052 is a high vulnerability (CVSS 8.2) in Ibm Api Connect, published March 22, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.91%, the 79th percentile. No source names a fixed version.