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Vulnerabilities

Vulnerability · CVE-2026-107256

The Shield module enables you to protect a site behind an HTTP basic authentication prompt, so that an unfinished or non-public site cannot be viewed, crawled or indexed by anonymo

Published Oct 21, 2026 · catalog updated Oct 21, 2026 · The Shield module enables

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-107256. EPSS is 0.18%. Act only if a listed version of The Shield module enables is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Shield module enables).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.18%
Remediation
Not established
Affected products
Packagist:https://packages.drupal.org/8 drupal/shield

The Shield module enables you to protect a site behind an HTTP basic authentication prompt, so that an unfinished or non-public site cannot be viewed, crawled or indexed by anonymous visitors. The module doesn't sufficiently limit the number of authentication attempts it will evaluate under the scenario where an anonymous visitor repeatedly submits basic authentication credentials. This vulnerability is mitigated by the fact that the configured Shield credentials must be guessable — a long, randomly generated password is not practically brute forceable — and by the fact that Shield is intended as a supplementary barrier in front of a site rather than the site's user access control systems.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Packagist:https://packages.drupal.org/8 drupal/shield0 → 1.9.0

How to fix CVE-2026-107256

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-107256. EPSS is 0.18%. Act only if a listed version of The Shield module enables is installed.

Which versions are affected?

Compare what you have installed with 0 → 1.9.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.18%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Drupal security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    The Shield module enables you to protect a site behind an HTTP basic authentication prompt, so that an unfinished or non-public site cannot be viewed, crawled or indexed by anonymous visitors. The module doesn't sufficiently limit the number of authentication attempts it will evaluate under the scenario where an anonymous visitor repeatedly submits basic authentication credentials. This vulnerabil

  2. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    drupal/shield fixed in 1.9.0

  3. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    drupal/shield fixed in 1.9.0

  4. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    The Shield module enables you to protect a site behind an HTTP basic authentication prompt, so that an unfinished or non-public site cannot be viewed, crawled or indexed by anonymous visitors. The module doesn't sufficiently limit the number of authentication attempts it will evaluate under the scenario where an anonymous visitor repeatedly submits basic authentication credentials. This vulnerabil

Sources

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgOct 23, 2026
  • OpenSSF OSV / OSV ScannerOct 23, 2026