n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.123.85, 2.44.1, 2.43.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The n8n workflow automation platform is affected, specifically its Read/Write Files node. An authenticated user who can create and run workflows can submit a specially crafted file pattern that makes the server stop responding, which disrupts the user interface, API, webhooks, and health checks until the service is restarted.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
n8n before 1.123.85, 2.43.5, and 2.44.1 contains a regular expression denial of service vulnerability that allows authenticated members to block the event loop via crafted glob patterns. Attackers who can create and run workflows can submit a wildcard-heavy File(s) Selector pattern causing exponential backtracking, making the UI, API, webhooks, and health checks unresponsive until restart.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- n8n-io n8n
fixed in 1.123.85
- n8n-io n8n
From 2.44.0 · fixed in 2.44.1
- n8n-io n8n
From 2.0.0 · fixed in 2.43.5