CVE-2026-57303

EUVD-2026-38784
Jenkins Assembla Plugin 1.4 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers able to control the responses of the configured Assembla server to extract secrets from the Jenkins controller or perform server-side request forgery.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10%
Affected Products (NVD)
VendorProductVersion
jenkinsassembla
𝑥
≤ 1.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3692%20(1)