NetBox 2.9.5 < 4.7.0 Session Hijacking via Custom Links
NetBox versions 2.9.5 before 4.7.0 contain a server-side template injection vulnerability that allows a low-privileged user with the "Can add custom links" permission to steal session cookies and API tokens of other users by exposing the raw Django HttpRequest object to the Jinja2 template context. Attackers can craft a custom link template embedding request.COOKIES['sessionid'] or a user's API token into an img src URL, which bypasses the clean_html sanitizer and auto-exfiltrates the victim's credentials to an attacker-controlled host when a privileged user views the object, enabling full account takeover.
CVE-2026-104073
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-104073
netbox
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/netbox-community/netbox",
"vendor": "netbox-community",
"product": "netbox",
"versions": [
{
"status": "affected",
"version": "2.9.5",
"lessThan": "4.7.0",
"versionType": "semver"
}
],
"packageURL": "pkg:github/netbox-community/netbox",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-104073
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #11863 · Revision 1
- Added to Heist Feed
- Publisher date