CriticalVulnerabilityLLM-specific

CVE-2026-73487: Flowise Python code validator bypass in CSV and Airtable Agent nodes

Source: NVD(opens in a new tab)
Identifier: CVE-2026-73487
Published: August 13, 2026
Record updated: October 9, 2026

Affected: flowise <= 3.1.2
flowise-components <= 3.1.2
Fixed in: 3.1.3
flowise 3.1.3 released June 25, 2026, 49 days before disclosure
flowise-components 3.1.3 released June 25, 2026, 49 days before disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 1.0%

Summary

CVE-2026-73487 affects Flowise before 3.1.3. A regex-based Python code validator in the CSV and Airtable Agent nodes can be bypassed, letting unauthenticated attackers inject malicious code through prompt injection. Attackers can use unblocked pandas functions such as pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution via the unauthenticated prediction API. VulnCheck rates it CVSS-B 9.0 (CRITICAL), while NVD has not yet provided an assessment.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

Patch available: Yes
EPSS: 1.0%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 12, 2026.
Disclosure date: August 13, 2026

Weaknesses and techniques

Weakness (CWE): CWE-94
Attack pattern (CAPEC): CAPEC-242
AI threat technique (MITRE ATLAS): AML.T0051

Affected

Packages: flowise@<= 3.1.2 (fixed: 3.1.3)
flowise-components@<= 3.1.2 (fixed: 3.1.3)

Classification

Attack type: Prompt injection,
Other
Attack sophistication: Trivial
AI component targeted: Agent
Impact: Confidentiality,
Integrity,
Availability
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-2026-73487

First tracked: August 13, 2026 at 02:08 PM ET, from NVD/CVE Database

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

Classifier confidence: 95% (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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