Severity:
CVSS 4.0: 2.3 (low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/V:D/RE:L/U:Green
Affected versions:
- Apache Shiro (org.apache.shiro:shiro-core) before 3.0.2
Description:
`DefaultPasswordService` and `SimpleCredentialsMatcher` could treat an empty
stored credential as a match for an empty submitted password.
This issue affects all Apache Shiro versions through 3.0.1, only when accounts
with an empty stored credential exist.
Mitigation: Upgrade to version 3.0.2 or later, which fixes the issue.
Alternatively, avoid storing empty credentials, and reject empty passwords in
the application.
Credit:
The ASF, found using LLM security scan, validated and reported by Apache Shiro
(finder)
Lenny Primak <[email protected]> (remediation developer)
References:
https://shiro.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-129347
