{
"id": "GHSA-fcvm-3cpj-f9qx",
"aliases": [
"CVE-2026-43827"
],
"details": "Default configurations of Apache Shiro have a session fixation vulnerability.\n\nThis issue affects Apache Shiro from 1.0 to 2.1.0, and 3.0.0-alpha-1.\n\nUsers are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue.\n\nIn the affected versions, when a session already exists, it is not invalidated upon successful login, nor is a new session being generated with a new ID.",
"summary": "Apache Shiro has a session fixation vulnerability",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.0.0-incubating"
},
{
"fixed": "2.2.0"
}
]
}
],
"package": {
"name": "org.apache.shiro:shiro-core",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.0.0-alpha-1"
},
{
"fixed": "3.0.0-alpha-2"
}
]
}
],
"package": {
"name": "org.apache.shiro:shiro-core",
"ecosystem": "Maven"
},
"versions": [
"3.0.0-alpha-1"
]
}
],
"modified": "2026-06-30T17:26:23Z",
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/RE:L/U:Amber"
}
],
"published": "2026-05-26T13:30:50Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43827",
"type": "ADVISORY"
},
{
"url": "https://github.com/apache/shiro",
"type": "PACKAGE"
},
{
"url": "https://shiro.apache.org/security-reports.html#cve_2026_43827",
"type": "WEB"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/25/6",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-05-25T21:16:34Z",
"github_reviewed_at": "2026-06-30T17:26:23Z"
}
}