Jenkins Assembla Plugin has a missing permission check (CVE-2026-57304) | HOL Guard CVE

Medium · CVSS 5.4CVE-2026-57304GHSA-2R5W-JH6G-8HFF

Jenkins Assembla Plugin has a missing permission check

Answer in brief

CVE-2026-57304 records a Medium severity (CVSS 5.4) vulnerability in Jenkins Assembla Plugin has a missing permission check. The current sources do not mark it as known exploited. The current feed maps org.jenkins-ci.plugins:assembla (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 24, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Jun 24, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.4
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps org.jenkins-ci.plugins:assembla (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
org.jenkins-ci.plugins:assemblamaven	<=1.4	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for org.jenkins-ci.plugins:assembla.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jun 24, 2026
Evidence: source:ghsa:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:ghsa:source_dates:source-dates:record
First seen by HOL
Jun 24, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.