HighVulnerabilityLLM-specific

CVE-2026-41271: Flowise server-side request forgery in POST/GET API Chain components

Source: NVD(opens in a new tab)
Identifier: CVE-2026-41271
Published: April 23, 2026
Record updated: October 9, 2026

Affected: flowise <= 3.0.13
flowise-components <= 3.0.13
Fixed in: 3.1.0
flowise 3.1.0 released March 16, 2026, 38 days before disclosure
flowise-components 3.1.0 released March 16, 2026, 38 days before disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.2%

Summary

CVE-2026-41271 affects Flowise versions prior to 3.1.0, specifically the POST/GET API Chain components. Unauthenticated attackers can inject malicious prompt templates to force the server to make arbitrary HTTP requests to internal and external systems, bypassing the intended API documentation constraints. This can enable internal network reconnaissance and data exfiltration.

Mitigation

Fixed in 3.1.0.

Details

Scores and exploitation

Patch available: Yes
EPSS: 0.2%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 9, 2026.
Disclosure date: April 23, 2026

Weaknesses and techniques

Weakness (CWE): CWE-918
Attack pattern (CAPEC): CAPEC-664
AI threat technique (MITRE ATLAS): AML.T0010
AML.T0051

Affected

Packages: flowise@<= 3.0.13 (fixed: 3.1.0)
flowise-components@<= 3.0.13 (fixed: 3.1.0)

Classification

Attack type: Prompt injection,
Supply chain
Attack sophistication: Moderate
AI component targeted: API
Impact: Confidentiality,
Integrity
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-41271

First tracked: April 24, 2026 at 08:10 AM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

flowisenpmLLM dependency since 2024-03-12
flowise-componentsnpmLLM dependency since 2023-04-10 · 1 tracked dependent

Summary

Mitigation

Affected packages in the Exposure Registry

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