GHSA-43V7-FP2V-68F6
Vulnerability from github – Published: 2026-03-25 22:06 – Updated: 2026-03-25 22:06Impact
When the Source Control feature is configured to use SSH, the SSH command used for git operations explicitly disabled host key verification. A network attacker positioned between the n8n instance and the remote Git server could intercept the connection and present a fraudulent host key, potentially injecting malicious content into workflows or intercepting repository data.
- This issue only affects instances where the Source Control feature has been explicitly enabled and configured to use SSH (non-default).
Patches
The issue has been fixed in n8n version 2.5.0. Users should upgrade to this version or later to remediate the vulnerability.
Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Disable the Source Control feature if it is not actively required. - Restrict network access to ensure the n8n instance communicates with the Git server only over trusted, controlled network paths.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "n8n"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-33724"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-25T22:06:10Z",
"nvd_published_at": "2026-03-25T19:16:51Z",
"severity": "MODERATE"
},
"details": "## Impact\nWhen the Source Control feature is configured to use SSH, the SSH command used for git operations explicitly disabled host key verification. A network attacker positioned between the n8n instance and the remote Git server could intercept the connection and present a fraudulent host key, potentially injecting malicious content into workflows or intercepting repository data.\n\n- This issue only affects instances where the Source Control feature has been explicitly enabled and configured to use SSH (non-default).\n\n## Patches\nThe issue has been fixed in n8n version 2.5.0. Users should upgrade to this version or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Disable the Source Control feature if it is not actively required.\n- Restrict network access to ensure the n8n instance communicates with the Git server only over trusted, controlled network paths.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.",
"id": "GHSA-43v7-fp2v-68f6",
"modified": "2026-03-25T22:06:10Z",
"published": "2026-03-25T22:06:10Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-43v7-fp2v-68f6"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33724"
},
{
"type": "PACKAGE",
"url": "https://github.com/n8n-io/n8n"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:L",
"type": "CVSS_V4"
}
],
"summary": "n8n\u0027s Source Control SSH Configuration Uses StrictHostKeyChecking=no"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.