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Vulnerability record · CVE-2026-57303 · published 24 June 2026

CVE-2026-57303: Jenkins assembla server-side request forgery (ssrf) vulnerability

Jenkins · Assembla

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.

7.1 CVSS 3.1 High EPSS 0.36% · top 72.9% CWE-918 · Server-side request forgery (SSRF)
7.1CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
25 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3692%20(1) Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-57303), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.