GHSA-c4qc-4q9p-m9q9

Source

https://github.com/advisories/GHSA-c4qc-4q9p-m9q9

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-c4qc-4q9p-m9q9/GHSA-c4qc-4q9p-m9q9.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-c4qc-4q9p-m9q9

Aliases

CVE-2026-23901

Downstream

CGA (30)

MINI (19)

Published

2026-02-10T12:30:28Z

Modified

2026-09-10T03:50:59Z

Severity

1.0 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator

Summary

Apache Shiro Affected by an Observable Timing Discrepancy Vulnerability

Details

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 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.

Database specific

{
    "cwe_ids":  [
        "CWE-208"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-02-10T14:33:33Z",
    "nvd_published_at":  "2026-02-10T10:15:59Z",
    "severity":  "LOW"
}

References

Affected packages

Maven / org.apache.shiro:shiro-core

Package

Name: org.apache.shiro:shiro-core; View open source insights on deps.dev
Purl: pkg:maven/org.apache.shiro/shiro-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.1.0

Affected versions

1.*

1.0.0-incubating

1.1.0

1.2.0

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.2.6

1.3.0

1.3.1

1.3.2

1.4.0-RC2

1.4.0

1.4.1

1.4.2

1.5.0

1.5.1

1.5.2

1.5.3

1.6.0

1.7.0

1.7.1

1.8.0

1.9.0

1.9.1

1.10.0

1.10.1

1.11.0

1.12.0

1.13.0

2.*

2.0.0-alpha-1

2.0.0-alpha-2

2.0.0-alpha-3

2.0.0-alpha-4

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

2.0.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-c4qc-4q9p-m9q9/GHSA-c4qc-4q9p-m9q9.json"