# CVE-2026-40471

> Vulnerability · severity: **CRITICAL** (CVSS 9.6).

## Description

hackage-server lacked Cross-Site Request Forgery (CSRF) protection across its endpoints. Scripts on foreign sites could trigger requests to hackage server, possibly abusing latent credentials to upload packages or perform other administrative actions. Some unauthenticated actions could also be abused (e.g. creating new user accounts).

## Key facts

- **CVE ID:** CVE-2026-40471
- **Published:** 2026-04-23
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.6
- **CWE codes:** CWE-352

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40471

## Citation

> AI Analytics. CVE-2026-40471. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-40471. Derived from NIST NVD. Licensed CC0.

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