Summary
n8n: Edit Image Node Format Injection Allows Arbitrary File Write
Advisory details
Impact
The n8n Edit Image node passed its output format to the underlying image library without validation, so a crafted value could write bytes to a location outside the node's working directory. An authenticated user able to run workflows could use this to write arbitrary files in the n8n instance.
Patches
The issue has been fixed in n8n versions 1.123.67, 2.31.5, and 2.32.1. Users should upgrade to one of these versions or later to remediate the vulnerability.
Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations:
- Restrict n8n instance access to fully trusted users only.
- Disable the Edit Image node by adding
n8n-nodes-base.editImageto theNODES_EXCLUDEenvironment variable.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
References
- https://github.com/advisories/GHSA-xmc9-4f2h-jf9c
- https://github.com/n8n-io/n8n/security/advisories/GHSA-xmc9-4f2h-jf9c
- https://github.com/n8n-io/n8n/commit/f69dfc6dd2178a14ea1624d2e1d403c2e755042f
- https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.67
- https://github.com/n8n-io/n8n/releases/tag/n8n@2.31.5
- https://github.com/n8n-io/n8n/releases/tag/n8n@2.32.1
Related vulnerabilities
All Supply chain →- HIGHCVE-2026-75913
CodeWhale: Argument Injection in `git_show` Tool Allows Arbitrary File Write Without Approval
- MEDIUMCVE-2026-75602
OpenList: Authenticated arbitrary file write via Content-Disposition path traversal in SimpleHttp offline-download tool
- HIGHCVE-2026-82393
pnpm: A tarball dependency's manifest `name` escapes node_modules → arbitrary file write/overwrite on install
- MEDIUMCVE-2026-81727
NLTK: Downloader.download follows hardlinks and overwrites outside-root files
- HIGHCVE-2026-81726
NLTK: Model-artifact APIs bypass pathsec and touch files outside allowed roots
- HIGHGHSA-2rx9-3g3h-c2jv
pnpm: pacquet trust-lockfile install can create dependency symlinks outside the project