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CVE-2016-4437: Improper Access Control in Apache Shiro

May 14, 2022 (updated October 22, 2025)

Apache Shiro before 1.2.5, when a cipher key has not been configured for the “remember me” feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.

References

  • github.com/advisories/GHSA-p836-389h-j692
  • lists.apache.org/thread.html/ef3a800c7d727a00e04b78e2f06c5cd8960f09ca28c9b69d94c3c4c4%40%3Cannouncements.aurora.apache.org%3E
  • lists.apache.org/thread.html/ef3a800c7d727a00e04b78e2f06c5cd8960f09ca28c9b69d94c3c4c4@%3Cannouncements.aurora.apache.org%3E
  • nvd.nist.gov/vuln/detail/CVE-2016-4437
  • www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4437

Code Behaviors & Features

Detect and mitigate CVE-2016-4437 with GitLab Dependency Scanning

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Affected versions

All versions before 1.2.5

Fixed versions

  • 1.2.5

Solution

Upgrade to version 1.2.5 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-284: Improper Access Control
  • CWE-321: Use of Hard-coded Cryptographic Key

Source file

maven/org.apache.shiro/shiro-core/CVE-2016-4437.yml

Spotted a mistake? Edit the file on GitLab.

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