How severe is CVE-2026-41949?

CVE-2026-41949 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-41949 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41949?

CVE-2026-41949 affects Dify. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41949?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-41949 have an EU (EUVD) identifier?

Yes. CVE-2026-41949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30774.

When was CVE-2026-41949 published?

CVE-2026-41949 was published on 2026-05-18 and last updated on 2026-06-22.

CVE-2026-41949

CVE-2026-41949 is a medium-severity vulnerability in Dify with a CVSS 3.x base score of 5.9. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v4: 8.2
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30774
Weakness: CWE-639
Affected product: Dify
Published: 2026-05-18
Last modified: 2026-06-22

Description

Dify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

Frequently asked questions

What is CVE-2026-41949?: Dify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.
How severe is CVE-2026-41949?: CVE-2026-41949 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-41949 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41949?: CVE-2026-41949 affects Dify. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41949?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-41949 have an EU (EUVD) identifier?: Yes. CVE-2026-41949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30774.
When was CVE-2026-41949 published?: CVE-2026-41949 was published on 2026-05-18 and last updated on 2026-06-22.

References

Affected products (1)

cpe:2.3:a:dify:dify:*:*:*:*:*:*:*:*

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