CVE-2026-57304GHSA-2r5w-jh6g-8hff

org.jenkins-ci.plugins:assembla: Jenkins Assembla Plugin has a missing permission check

Jenkins Project org.jenkins-ci.plugins:assemblamavenApplications & CMS

CVSS

5.4Medium

ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV

Exploit odds (EPSS)0.25%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS

Fixed inNone listedNo source names a fixed version. Check the vendor advisory below

Published24 Jun 2026Updated 25 Sep 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Jenkins Assembla Plugin 1.4 and earlier does not perform a permission check in an HTTP endpoint that tests the connection to an Assembla server.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using an attacker-specified username and password.

Additionally, this HTTP endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

As of publication of this advisory, there is no fix.