CVE-2026-83801Network attack vectorHinoki check available

Stored XSS via unsafe form help text

Published Sep 22, 2026 · Updated Sep 22, 2026

Stored XSS in Network to Code Nautobot 2.4.36 and earlier and 3.0.0 through 3.1.7 allows remote authenticated users to execute browser scripts. Relationship descriptions and Module Family names are assigned verbatim to form-field help_text that render_field.html renders through Django's safe filter without neutralization. The attacker needs the corresponding add or change permission, and execution occurs when an authenticated user opens an affected create or edit form, enabling actions in that victim's session or session/token theft.

CVSS severity5.4
Medium
EPSS probability0.22%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Network to Code Nautobot 2.4.36 and earlier and 3.0.0 through 3.1.7 allows remote authenticated users to execute browser scripts. Relationship descriptions and Module Family names are assigned verbatim to form-field help_text that render_field.html renders through Django's safe filter without neutralization. The attacker needs the corresponding add or change permission, and execution occurs when an authenticated user opens an affected create or edit form, enabling actions in that victim's session or session/token theft.

The record

CVE
CVE-2026-83801
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Network to Code
Product
Nautobot
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.4.37
  2. Affected versionversion=>= 3.0.0, < 3.1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Network to Code · Nautobotversion=< 2.4.37; version=>= 3.0.0, < 3.1.8

Published CVSS scores

5.4Nautobot GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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