High 7.6Published Oct 6, 2026

CVE-2026-104073NetBox 2.9.5 < 4.7.0 Session Hijacking via Custom Links

Updated under an hour ago (2026-10-19 07:23 UTC)

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It affects netbox-community netbox. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.28%, higher than 19% of scored CVEs.

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Exploited in the last 30 days

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.

CVSS: 7.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-668, CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.28% (percentile 19)
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

netbox-community netbox netbox_community:netbox (from the name)	from 2.9.5 before 4.7.0	CNA record

References

https://github.com/netbox-community/netbox/releases#release-v4.7.0release-notes
https://github.com/netbox-community/netbox/issues/22607issue-tracking
https://github.com/netbox-community/netbox/pull/22616patch
https://www.vulncheck.com/advisories/netbox-session-hijacking-via-custom-linksthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.