CVE-2026-73485: Flowise before 3.1.3 Remote Code Execution via Airtable Agent
Flowise before 3.1.3 contains a code injection vulnerability in the Airtable Agent node that allows unauthenticated attackers to execute arbitrary Python code by bypassing the pythonCodeValidator blocklist through obfuscation techniques. Attackers can send crafted prompts to a chatflow using the Airtable Agent node to inject malicious Python code that executes in an unsandboxed pyodide environment with full access to the host operating system.
Security readout for executives and security teams
Plain-English summary
Flowise deployments before 3.1.3 may let attackers turn prompts sent to an Airtable Agent chatflow into code running on the server. Successful exploitation could expose data, alter systems, or disrupt service. Risk is concentrated where affected chatflows are reachable by untrusted users.
Executive priority
Treat internet-accessible or externally shared affected chatflows as an immediate remediation priority. Upgrade promptly and temporarily restrict the Airtable Agent where rapid upgrading is impossible. Internal, tightly controlled deployments still require accelerated review because successful exploitation can affect the host operating system.
Technical view
CVE-2026-73485 is a CWE-94 code-injection flaw in the Airtable Agent node. Obfuscated input can bypass the pythonCodeValidator blocklist and execute arbitrary Python in an unsandboxed pyodide environment with host operating-system access. The supplied description says unauthenticated exploitation, although the CVSS 4.0 vector specifies low privileges and high attack complexity.
Likely exposure
Likely exposed assets are Flowise versions before 3.1.3 that use the Airtable Agent node in chatflows reachable by untrusted users. The bundle does not establish whether the node is enabled by default or identify specific deployment configurations, so inventory and chatflow review are necessary.
Exploitation context
The CVSS score is 9.0, with network reachability, high attack complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impacts. The bundle marks KEV as false and provides no evidence of active exploitation. Public technical advisories may increase attacker awareness.
Researcher notes
The core failure is reliance on a bypassable code-validation blocklist combined with execution outside an effective sandbox. Researchers should reconcile the description's unauthenticated claim with the CVSS PR:L rating. The duplicated affected-product entries and ambiguous version-range formatting reduce precision, but the title consistently identifies versions before 3.1.3.
Mitigation direction
Upgrade affected Flowise deployments to version 3.1.3 or later.
Restrict access to chatflows using the Airtable Agent until upgrading.
Disable or remove the Airtable Agent node where it is unnecessary.
Follow the Flowise vendor advisory for any additional remediation guidance.
Rotate exposed credentials if investigation indicates possible compromise.
Validation and detection
Inventory Flowise versions and identify every deployment older than 3.1.3.
Locate chatflows using the Airtable Agent node and document their accessibility.
Confirm upgraded deployments report Flowise 3.1.3 or later.
Review logs for suspicious prompts, Python execution, or unexpected child processes.
Check affected hosts for unexplained file, credential, network, or process activity.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
1CVSS vectors
3Timeline events
1ADP providers
3Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-94 · source CWE mapping
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.