How severe is CVE-2026-41268?

CVE-2026-41268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-41268 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41268?

CVE-2026-41268 affects Flowiseai Flowise. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41268?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-41268 have an EU (EUVD) identifier?

Yes. CVE-2026-41268 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25285.

When was CVE-2026-41268 published?

CVE-2026-41268 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-41268

CVE-2026-41268 is a critical-severity vulnerability in Flowiseai Flowise with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25285
Weakness: CWE-20
Affected product: Flowiseai Flowise
Published: 2026-04-23
Last modified: 2026-06-17

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise is vulnerable to a critical unauthenticated remote command execution (RCE) vulnerability. It can be exploited via a parameter override bypass using the FILE-STORAGE:: keyword combined with a NODE_OPTIONS environment variable injection. This allows for the execution of arbitrary system commands with root privileges within the containerized Flowise instance, requiring only a single HTTP request and no authentication or knowledge of the instance. This vulnerability is fixed in 3.1.0.

Frequently asked questions

What is CVE-2026-41268?: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise is vulnerable to a critical unauthenticated remote command execution (RCE) vulnerability. It can be exploited via a parameter override bypass using the FILE-STORAGE:: keyword combined with a NODE_OPTIONS environment variable injection. This allows for the execution of arbitrary system commands with root privileges within the containerized Flowise instance, requiring only a single HTTP request and no authentication or knowledge of the instance. This vulnerability is fixed in 3.1.0.
How severe is CVE-2026-41268?: CVE-2026-41268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-41268 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41268?: CVE-2026-41268 affects Flowiseai Flowise. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41268?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-41268 have an EU (EUVD) identifier?: Yes. CVE-2026-41268 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25285.
When was CVE-2026-41268 published?: CVE-2026-41268 was published on 2026-04-23 and last updated on 2026-06-17.

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-cvrr-qhgw-2mm6

Affected products (1)

cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*

More vulnerabilities in Flowiseai Flowise

CVE-2025-71338 — Critical (CVSS 10.0): Flowise contains a path traversal vulnerability in the /api/v1/document-store/loader/process endpoint that allows…
CVE-2025-59528 — Critical (CVSS 10.0): Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, Flowise is…
CVE-2026-56274 — Critical (CVSS 9.9): Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to…
CVE-2026-46442 — Critical (CVSS 9.9): Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, POST…
CVE-2026-40933 — Critical (CVSS 9.9): Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, due to unsafe…
CVE-2025-34267 — Critical (CVSS 9.9): Flowise v3.0.1 < 3.0.8 and all versions after with 'ALLOW_BUILTIN_DEP' enabled contain an authenticated remote code…

All CVEs affecting Flowiseai Flowise →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48056 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download video content. Versions prior to 2.5.0…
CVE-2026-33267 — Critical (CVSS 10.0): Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.2.0…
CVE-2026-47668 — Critical (CVSS 10.0): DbGate is cross-platform database manager. In versions 7.1.8 and prior, DbGate's JSON script runner (`POST…
CVE-2026-16117 — Critical (CVSS 10.0): Impact: @fastify/http-proxy versions up to and including 11.5.0 fail to rewrite the request prefix when the prefix…
CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →