CVE-2026-23901 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionObservable 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 paths for non-existent vs. existing users are different enough, that a brute-force attack may be able to tell, by timing the requests only, determine if the request failed because of a non-existent user vs. wrong password. The most likely attack vector is a local attack only. Shiro security model https://shiro.apache.org/security-model.html#username_enumeration discusses this as well. Typically, brute force attack can be mitigated at the infrastructure level. Metrics
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-23901 NVD Published Date: 02/10/2026 NVD Last Modified: 02/10/2026 Source: Apache Software Foundation |
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