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CVE Record

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.

CriticalCVSS 9Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

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.
Prepared
Confidence
high
Sources
4

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.

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description · low confidence lookup

Execution behavior lookup

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-73485 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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.

ScoreVersionSeverityVectorExploitImpactSource
9CVSS 4.0CriticalCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HVulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

9Critical
CVSS 4.0 vector shape for CVE-2026-73485Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FlowiseAIFlowise0, 3.1.3unaffected
FlowiseAIFlowise0, 3.1.3unaffected
Weakness

CWE details

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.