What is the CVSS score of CVE-2026-8056?

CVE-2026-8056 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Langflow Oss CVE-2026-8056

EUVD-2026-45278 HIGH

Code Injection (CWE-94)

2026-07-17 ibm

GHSA-j327-34qm-gmcp

RCE IBM Code Injection Langflow Oss

8.8

CVSS 3.1 · Vendor: ibm

View

Vulnerability Assessment

Weakness

CWE

CWE-94

OWASP Top 10:2025

A05:2025 - Injection

ASVS 5.0

V1 - Encoding and Sanitization Code injection prevention, sandbox exec

MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 17, 2026

Remote code execution in IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated users to override arbitrary component parameters at runtime through the API, bypassing the parameter filtering logic in the apply_tweaks() function (CWE-94 code injection). Because a low-privileged authenticated account is sufficient and the impact is full compromise of confidentiality, integrity, and availability (CVSS 8.8), this maps to server-side code execution on the Langflow host. There is no public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.

Affected VersionsENISA

Langflow OSS 1.0.0 ≤1.10.0

Affected Packages

euvd langflow_oss no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (ibm) PRIMARY 8.8 HIGH

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

Primary rating from Vendor (ibm) · only source for this CVE.

CVSS VectorVendor: ibm

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated users to override component parameters at runtime via the API. A critical security flaw exists in the parameter filtering mechanism within the apply_tweaks() function.

Executive ViewAI

Why It Matters

IBM Langflow open-source platform versions 1.0.0 through 1.10.0 contain a remote code execution vulnerability (CVE-2026-8056) that allows any authenticated user to gain full control of the hosting server, compromising all data and operations. Organizations using Langflow in production face immediate risk from insider threats and compromised service accounts, requiring urgent patching.

Recommended Action

Within 24 hours, inventory all systems running IBM Langflow OSS 1.0.0-1.10.0 in production and development environments, and immediately restrict network access to Langflow instances to approved users and subnets only. Within 7 days, apply the available vendor patch to all identified instances after testing in a non-production environment, then validate patch installation and confirm application functionality. Within 30 days, audit and rotate credentials for all authenticated accounts and service principals that had API access during the vulnerability window, implement network-layer access controls limiting Langflow API connections to trusted IP ranges, and establish a process for rapid patching of Langflow instances in the future.

Business Impact: High

Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score

0.3%

Top 79% exploitable

Social Media

Sightings

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS CIRCL

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.3%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.