CVE-2026-104073

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory published 2026-10-06. A secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
Trending — 3 sources updated this week
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 v3
7.6
EG Score
7.6HIGHhigh confidence
EG Risk
34
EG Risk 34/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity76% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 6, 2026

Last Modified

October 7, 2026

Advisory Details (4)

Auto-updated Oct 6, 2026
Patch available. Sources: github_pr.
generic

NetBox 2.9.5 < 4.7.0 Session Hijacking via Custom Links | Advisories | VulnCheck

https://www.vulncheck.com/advisories/netbox-session-hijacking-via-custom-links
github_pr Patch Available

Closes #22607: Sanitize HTTP requests passed to template contexts for custom links

Patch available: netbox-community/netbox v4.7.0-beta1 (PR #22616 merged 2026-07-07)

https://github.com/netbox-community/netbox/pull/22616
generic

Sanitize HTTP requests passed to template contexts for custom links · Issue #22607 · netbox-community/netbox · GitHub

https://github.com/netbox-community/netbox/issues/22607
generic

Releases · netbox-community/netbox · GitHub

https://github.com/netbox-community/netbox/releases#release-v4.7.0

Vendor Advisories for CVE-2026-104073(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-07 15:32 UTCEG score recompute
  2. 2026-10-07 15:32 UTCGHSA enrichment
  3. 2026-10-07 14:28 UTCEG score recompute
  4. 2026-10-07 14:28 UTCGHSA enrichment
  5. 2026-10-07 07:03 UTCEG score recompute
  6. 2026-10-07 07:03 UTCGHSA enrichment
  7. 2026-10-06 19:33 UTCEG score recompute
  8. 2026-10-06 18:57 UTCEG score recompute
  9. 2026-10-06 18:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-104073?
CVE-2026-104073 is a high vulnerability published on October 6, 2026. 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.…
When was CVE-2026-104073 disclosed?
CVE-2026-104073 was first published on October 6, 2026, with the most recent update on October 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-104073?
CVE-2026-104073 has a CVSS base score of 7.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-104073?
A fix for CVE-2026-104073 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-104073 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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