Unscored severity · published Oct 28, 2026
CVE-2026-117623
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not escape the text shown in the tooltips of breadcrumb bar overflow menu entries, resulting in a stored cross-site…
New
–
CVSS
–
EPSS
No
On KEV
Description
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not escape the text shown in the tooltips of breadcrumb bar overflow menu entries, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Read permission.
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JE
Jenkins · Jenkins
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-117623
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-117623
www.jenkins.io
https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4229
More from Jenkins
9.9
CVE-2019-1003029
Jenkins Script Security Plugin Sandbox Bypass Vulnerability
9.9
CVE-2019-1003030
Jenkins Matrix Project Plugin Remote Code Execution Vulnerability
9.8
CVE-2024-23897
Jenkins Command Line Interface (CLI) Path Traversal Vulnerability
9.8
CVE-2018-1000861
A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in…
9.8
CVE-2017-1000353
Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution