CVE-2025-56520Known exploitationPublic exploitNetwork attack vector

Internal service probing via unauthenticated remote-file request

Published Sep 30, 2025 · Updated Sep 30, 2025

SSRF in Dify 1.6.0 remote-file API allows remote attackers to make server-originated requests through a supplied URL. The CVE record names RemoteFileUploadApi, while its referenced report shows RemoteFileInfoApi passing the URL to ssrf_proxy.head without authenticating the interface. Network access to the endpoint is sufficient for reconnaissance against internal or external services reachable from the Dify server.

CVSS severity5.3
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Dify 1.6.0 remote-file API allows remote attackers to make server-originated requests through a supplied URL. The CVE record names RemoteFileUploadApi, while its referenced report shows RemoteFileInfoApi passing the URL to ssrf_proxy.head without authenticating the interface. Network access to the endpoint is sufficient for reconnaissance against internal or external services reachable from the Dify server.

The record

CVE
CVE-2025-56520
Published
Sep 30, 2025
Updated
Sep 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 2025Record updatedLatest update available in the CVE record.
  3. Feb 11, 2026Exploitation reportedCrowdSec Network exploitation attempts

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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