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Java CVE-2026-26682

HIGH
Code Injection (CWE-94)
2026-02-26 cve@mitre.org
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 03, 2026 - 20:06 vuln.today
Public exploit code
CVE Published
Feb 26, 2026 - 18:23 nvd
HIGH 7.8

DescriptionCVE.org

An issue in fastCMS before v.0.1.6 allows a local attacker to execute arbitrary code via the PluginController.java component

AnalysisAI

Fastcms versions prior to 0.1.6 contain a code injection vulnerability in the PluginController component that allows local attackers with user-level privileges to execute arbitrary code with full system compromise. Public exploit code exists for this vulnerability, and no patch is currently available. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to fastCMS locally
Exploit
Access PluginController component
Execution
Upload malicious plugin code
Impact
Execute arbitrary code with application privileges

Vulnerability AssessmentAI

Exploitation Local system access required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to compromise the affected system.
Remediation Monitor vendor advisories for a patch. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all systems running fastCMS and identify affected versions below 0.1.6; disable plugin functionality if operationally feasible and implement access controls restricting local system access. …

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CVE-2026-26682 vulnerability details – vuln.today

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