CVE-2023-34478

Name: CVE-2023-34478
Creator: NVD / NIST
Published: 2023-07-24T19:15:10.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.53%

Last modified Jun 17, 2026

CVE-2023-34478 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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+. EPSS estimates a 1.53% chance of exploitation in the next 30 days.

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+

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.53%

71.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions	Update
Apache	Shiro	< 1.12.0	—
Apache	Shiro	2.0.0	Alpha1

References

http://www.openwall.com/lists/oss-security/2023/07/24/4Mailing List, Third Party Advisory
https://lists.apache.org/thread/mbv26onkgw9o35rldh7vmq11wpv2t2qkMailing List
https://security.netapp.com/advisory/ntap-20230915-0005/
http://www.openwall.com/lists/oss-security/2023/07/24/4Mailing List, Third Party Advisory
https://lists.apache.org/thread/mbv26onkgw9o35rldh7vmq11wpv2t2qkMailing List
https://security.netapp.com/advisory/ntap-20230915-0005/

Timeline

Published: Jul 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-34478?

How severe is CVE-2023-34478?

CVE-2023-34478 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-34478?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-34478?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST