What is CVE-2026-23901?

CVE-2026-23901 is a low-severity vulnerability in Apache Shiro, classified under CWE-208. CVSS score: 2.5/10. Published 2026-02-10.

How severe is CVE-2026-23901?

Low severity. CVSS v3 base score is 2.5 out of 10.

Vulnerability in Apache Shiro

CVE-2026-23901

Observable Timing Discrepancy vulnerability in Apache Shiro. This issue affects Apache Shiro: from 1.*, 2.* before 2.0.7. Users are recommended to upgrade to version 2.0.7 or later, which fixes the issue. Prior to Shiro 2.0.7, code path…

EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Apache Shiro
Apache Software Foundation Shiro — versions 0

Weakness classification (CWE)

CWE-208

References

security@apache.org (vendor-advisory, Mailing List, Third Party Advisory, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-23901?: CVE-2026-23901 is a low-severity vulnerability in Apache Shiro, classified under CWE-208. CVSS score: 2.5/10. Published 2026-02-10.
How severe is CVE-2026-23901?: Low severity. CVSS v3 base score is 2.5 out of 10.