CVE-2026-73487: Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that

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CRITICAL 9.8REMOTEUPGRADE

CVE-2026-73487 is a critical-severity flaw (CVSS 9.8) affecting flowise. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 39%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-08-13
Last modified	2026-10-24

Publisher (CNA): VulnCheck · Vendor: flowiseai

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-13 12:17 UTCPublished CVE record published
2026-10-24 15:10 UTCUpdated Record last modified

flowiseai flowise UPGRADE

Affected: <= 3.1.4

Fixed in: newer than 3.1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy flowise || rpm -q flowise || flowise --version

2. UPGRADE to newer than 3.1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade flowise

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flowise

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

npm · flowise · FIXED · 3.1.3 · vulnerable: <= 3.1.2 · source

npm install flowise@">=3.1.3" npm ls flowise

npm · flowise-components · FIXED · 3.1.3 · vulnerable: <= 3.1.2 · source

npm install flowise-components@">=3.1.3" npm ls flowise-components

Fedora 46 · wasmedge · FIXED · 0.18.1-1.fc46 · FEDORA-2026-4c27216e39 · source

sudo dnf upgrade --advisory=FEDORA-2026-4c27216e39

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-73487?

flowise: upgrade to newer than 3.1.4. Exact commands for each OS are on this page.

Is CVE-2026-73487 being exploited?

CVE-2026-73487 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-73487 affect?

CVE-2026-73487 affects flowise. Severity is critical (CVSS 9.8). Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions l

How urgent is CVE-2026-73487?

Priority 63/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities · Pandas and NumPy vulnerabilities

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References

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