CVE-2020-2146
Missing SSH host key validation in Mac Plugin
Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.
- Record
CVE-2020-2146- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
CVE List No score
Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.
- Record
CVE-2020-2146- Updated
- 2026-11-02
EUVDEUVD-2022-5238 No score
Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.
- Record
EUVD-2022-5238- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rv9g-67f7-grq7
Missing SSH host key validation in Mac Plugin
Mac Plugin 1.1.0 and earlier does not use SSH host key validation when connecting to Mac Cloud host launched by the plugin. This lack of validation could be abused using a man-in-the-middle attack to intercept these connections to build agents.
Mac Plugin 1.2.0 validates SSH host keys when connecting to agents.
- Record
GHSA-rv9g-67f7-grq7- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSV
Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.
- Record
CVE-2020-2146- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-rv9g-67f7-grq7
Missing SSH host key validation in Mac Plugin
Mac Plugin 1.1.0 and earlier does not use SSH host key validation when connecting to Mac Cloud host launched by the plugin. This lack of validation could be abused using a man-in-the-middle attack to intercept these connections to build agents.
Mac Plugin 1.2.0 validates SSH host keys when connecting to agents.
- Record
GHSA-rv9g-67f7-grq7- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fr.edf.jenkins.plugins:macMaven |
before 1.2.0 | 1.2.0 |
fr.edf.jenkins.plugins:macMaven |
before 1.2.0, plus listed versions 1.0.01.0.11.0.21.1.0 |
1.2.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-2146 is a high vulnerability (CVSS 7.4) in Jenkins Mac, published March 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. Fixed in fr.edf.jenkins.plugins:mac 1.2.0.