---
id: "CVE-2026-111883"
kind: "vulnerability"
aliases: ["CVE-2026-111883"]
title: "Locust: cross-site request forgery lets attackers stop load tests"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["load-testing", "locust", "package", "python"]
not_affected_if: ["headless-runs", "newer-version"]
published_at: "2026-10-19T14:17:00+00:00"
first_seen_at: "2026-10-23T21:57:18+00:00"
updated_at: "2026-10-25T04:16:51+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111883", "first_seen_at": "2026-10-23T21:57:18+00:00"}]
---

# Locust: cross-site request forgery lets attackers stop load tests

Locust through 2.46.7 accepts GET requests to /stop and /stats/reset without checking the request origin. A malicious web page visited by an operator can stop running load tests and wipe recorded performance statistics.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `pip show locust` and compare the version with `2.46.7`
- Check whether the Locust web UI is reachable from a browser the team uses

## Fix

- Upgrade Locust past `2.46.7` (fixed version unknown from the sources)
- Restrict access to the Locust web UI to trusted networks until upgraded

## Timeline

- 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111883

## From the sources

Locust through 2.46.7 contains a cross-site request forgery vulnerability that allows remote attackers to stop load tests or reset statistics via GET requests to /stop and /stats/reset. Attackers can lure an operator to a malicious page triggering cross-site GET requests, terminating running swarms and wiping recorded performance results.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_