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[GHSA-293q-567p-wmwq] SubjectDnX509PrincipalExtractor does not correctly handle... #8052

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[GHSA-293q-567p-wmwq] SubjectDnX509PrincipalExtractor does not correctly handle... #8052

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25 changes: 23 additions & 2 deletions advisories/unreviewed/2026/06/GHSA-293q-567p-wmwq/GHSA-293q-567p-wmwq.json
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{
"schema_version": "1.4.0",
"id": "GHSA-293q-567p-wmwq",
"modified": "2026-06-10T00:31:53Z",
"modified": "2026-06-10T00:32:00Z",
"published": "2026-06-10T00:31:53Z",
"aliases": [
"CVE-2026-47838"
],
"summary": "Unauthorized User Impersonation when Using X.509 Client Certificates",
"details": "SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"
}
],
"affected": [],
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.springframework.security:spring-security-web"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.11"
}
]
}
]
}
],
"references": [
{
"type": "ADVISORY",
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