Arbitrary File Read in n8n File Access Controls
CVE-2026-25052 is a critical arbitrary file read vulnerability in n8n, the open-source workflow automation platform. In n8n versions prior to 1.123.18 and 2.5.0, insufficient file access controls on internal resources allow an authenticated user with permission to create or modify workflows to read sensitive files from the underlying n8n host system. The issue is described as a file access control weakness and is mapped in the provided source material to CWE-367. By abusing workflow-capable functionality, an attacker can access host-resident files containing sensitive configuration data and credentials, breaking the intended isolation between workflows and the host environment.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical arbitrary file read vulnerability in n8n caused by insufficient access controls on internal resources/APIs, allowing authenticated workflow users to read sensitive host files and configuration.
Authenticated TOCTOU flaw in n8n file access controls enabling sensitive file read and potentially full account takeover.
TOCTOU flaw in n8n file access controls allowing authenticated workflow authors to read sensitive host files, potentially leading to full account takeover on the instance.
An authenticated file access control weakness in n8n that allows users who can create/modify workflows to read sensitive files on the host, potentially exposing configuration and credentials and enabling full account takeover.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.