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CVE Record

CVE-2025-34267: Flowise Authenticated Command Execution and Sandbox Bypass via Puppeteer & Playwright Packages

Flowise v3.0.1 < 3.0.8 and all versions after with 'ALLOW_BUILTIN_DEP' enabled contain an authenticated remote code execution vulnerability and node VM sandbox escape due to insecure use of integrated modules (Puppeteer and Playwright) within the nodevm execution environment. An authenticated attacker able to create or run a tool that leverages Puppeteer/Playwright can specify attacker-controlled browser binary paths and parameters. When the tool executes, the attacker-controlled executable/parameters are run on the host and circumvent the intended nodevm sandbox restrictions, resulting in execution of arbitrary code in the context of the host. This vulnerability was incorrectly assigned as a duplicate CVE-2025-26319 by the developers and should be considered distinct from that identifier.

HighCVSS 8.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A logged-in Flowise user may be able to break out of Flowise's tool execution sandbox and run code on the host server when Puppeteer or Playwright are available through built-in dependencies. This is serious for shared or internet-facing Flowise instances because compromise can move from an application account to the underlying host.

Executive priority

Treat as high priority where Flowise is multi-user, externally reachable, or used near sensitive systems. The main business risk is server compromise from a privileged application account, not unauthenticated internet-wide exploitation.

Technical view

The issue is an authenticated command execution and nodevm sandbox bypass in Flowise involving Puppeteer and Playwright module use. An attacker with high privileges who can create or run a tool can control browser binary paths or parameters, causing host-level execution outside the intended sandbox. The CVSS v4.0 score is 8.4.

Likely exposure

Exposure is most likely in Flowise v3.0.1 through versions before 3.0.8, and later configurations where ALLOW_BUILTIN_DEP is enabled. Risk depends on whether authenticated users can create or execute tools using Puppeteer or Playwright.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires authentication with sufficient privileges, but no user interaction and low attack complexity are indicated.

Researcher notes

CVE-2025-34267 is described as distinct from CVE-2025-26319 despite developer duplicate handling. The affected-version evidence is partly inconsistent: the record lists Flowise 3.0.1, while the description states pre-3.0.8 and later ALLOW_BUILTIN_DEP-enabled configurations.

Mitigation direction

  • Check the Flowise advisory for the currently recommended fixed version or configuration change.
  • Disable ALLOW_BUILTIN_DEP where not required by business workflows.
  • Restrict tool creation and execution to trusted administrators only.
  • Review whether Puppeteer or Playwright are exposed inside Flowise tool execution.
  • Isolate Flowise hosts and limit sensitive host permissions.

Validation and detection

  • Inventory Flowise versions and flag 3.0.1 through pre-3.0.8 deployments.
  • Check runtime configuration for ALLOW_BUILTIN_DEP enabled.
  • Review Flowise users who can create or run tools.
  • Look for workflows using Puppeteer or Playwright modules.
  • Review host logs for unexpected child process or browser binary execution.
Prepared
Confidence
medium
Sources
6

Public sources used

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-77: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter 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.

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description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2025-34267 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.4 (4.0)
Known Exploited
No
Published

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

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
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

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
8.4CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:L——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

8.4High
CVSS 4.0 vector shape for CVE-2025-34267Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

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
FlowiseAIFlowise3.0.1unaffected
Weakness

CWE details

CWE-77

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-77 · source CWE mapping

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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