What’s Vulnerable › Vulnerabilities

CVE-2023-34478: Apache Shiro before 1.12.0, or 2.0.0-alpha-3, may be susceptible to a path traversal attack when used together with APIs or other web frameworks that route requests based on non-normalized requests.

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-24 · updated 2026-06-17
• Weakness: CWE-22

Description

Apache Shiro, before 1.12.0 or 2.0.0-alpha-3, may be susceptible to a path traversal attack that results in an authentication bypass when used together with APIs or other web frameworks that route requests based on non-normalized requests. Mitigation: Update to Apache Shiro 1.12.0+ or 2.0.0-alpha-3+

Affected products

• Apache Software Foundation Apache Shiro: before 1.12.0; 2.0.0-alpha1, 2.0.0-alpha2 — fixed in 1.12.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Shiro 1.12.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2023/07/24/4
• https://lists.apache.org/thread/mbv26onkgw9o35rldh7vmq11wpv2t2qk
• https://security.netapp.com/advisory/ntap-20230915-0005/
• http://www.openwall.com/lists/oss-security/2023/07/24/4
• https://lists.apache.org/thread/mbv26onkgw9o35rldh7vmq11wpv2t2qk
• https://security.netapp.com/advisory/ntap-20230915-0005/

Get alerted when CVE-2023-34478 or the next vulnerability affects your stack