Is there a public PoC exploit available for CVE-2026-5619?

Yes, a public proof-of-concept exploit is available for CVE-2026-5619. Prioritise patching immediately. EPSS: 0.3%.

Mcp Summarization Functions CVE-2026-5619

Q: What is the CVSS score of CVE-2026-5619?

CVE-2026-5619 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.3%.

EUVD-2026-19166 LOW

OS Command Injection (CWE-78)

2026-04-06 VulDB

Command Injection Mcp Summarization Functions

1.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.9 LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

4.8 (MEDIUM) 1.9 (LOW)

PoC Detected

Apr 07, 2026 - 13:20 vuln.today

Public exploit code

EUVD ID Assigned

Apr 06, 2026 - 04:45 euvd

EUVD-2026-19166

Analysis Generated

Apr 06, 2026 - 04:45 vuln.today

CVE Published

Apr 06, 2026 - 03:45 nvd

MEDIUM 4.8

DescriptionCVE.org

A flaw has been found in Braffolk mcp-summarization-functions up to 0.1.5. This impacts an unknown function of the file src/server/mcp-server.ts of the component summarize_command. Executing a manipulation of the argument command can lead to os command injection. The attack requires local access. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

OS command injection in Braffolk mcp-summarization-functions through version 0.1.5 allows local attackers with user-level privileges to execute arbitrary system commands by manipulating the command argument in the summarize_command function. The vulnerability affects the src/server/mcp-server.ts component and requires local access; publicly available exploit code exists, and the vendor has not responded to disclosure attempts.

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Vulnerability AssessmentAI

Risk Assessment	The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L) reflects a local attack vector requiring low complexity and local user privileges, with low impact on confidentiality, integrity, and availability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A local attacker with user-level access on a system running mcp-summarization-functions crafts a malicious summarization request with an injected OS command in the command argument (e.g., `; rm -rf /tmp/*` or `&& cat /etc/passwd`). The vulnerable summarize_command function in src/server/mcp-server.ts does not sanitize this input and passes it directly to an OS command execution function. …
Remediation	No vendor-released patch identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-5619 vulnerability details – vuln.today

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