How severe is CVE-2025-59527?

CVE-2025-59527 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-59527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59527?

CVE-2025-59527 affects Flowiseai Flowise. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59527?

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

Does CVE-2025-59527 have an EU (EUVD) identifier?

Yes. CVE-2025-59527 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29247.

When was CVE-2025-59527 published?

CVE-2025-59527 was published on 2025-09-22 and last updated on 2026-09-30.

CVE-2025-59527

CVE-2025-59527 is a high-severity vulnerability in Flowiseai Flowise with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29247
Weakness: CWE-918
Affected product: Flowiseai Flowise
Published: 2025-09-22
Last modified: 2026-09-30

Description

Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, a Server-Side Request Forgery (SSRF) vulnerability was discovered in the /api/v1/fetch-links endpoint of the Flowise application. This vulnerability allows an attacker to use the Flowise server as a proxy to access internal network web services and explore their link structures. This issue has been patched in version 3.0.6.

Frequently asked questions

What is CVE-2025-59527?: Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, a Server-Side Request Forgery (SSRF) vulnerability was discovered in the /api/v1/fetch-links endpoint of the Flowise application. This vulnerability allows an attacker to use the Flowise server as a proxy to access internal network web services and explore their link structures. This issue has been patched in version 3.0.6.
How severe is CVE-2025-59527?: CVE-2025-59527 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-59527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59527?: CVE-2025-59527 affects Flowiseai Flowise. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59527?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-59527 have an EU (EUVD) identifier?: Yes. CVE-2025-59527 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29247.
When was CVE-2025-59527 published?: CVE-2025-59527 was published on 2025-09-22 and last updated on 2026-09-30.

References

Affected products (1)

cpe:2.3:a:flowiseai:flowise:3.0.5:*:*:*:*:*:*:*

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