Medium severity · published Sep 2, 2026
CVE-2026-84664
Jenkins GitLab Plugin 1.9.16 and earlier allows overwriting the global GitLab connection configuration through Stapler data binding, allowing attackers to connect to an…
5.4
CVSS
0.1%
EPSS
No
On KEV
Description
Jenkins GitLab Plugin 1.9.16 and earlier allows overwriting the global GitLab connection configuration through Stapler data binding, allowing attackers to connect to an attacker-specified URL using GitLab API tokens already configured by administrators.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JG
Jenkins GitLab Plugin · Jenkins Project
through 1.9.16 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84664
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84664
www.jenkins.io
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4097
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