原始 OSV JSON{
"id": "GHSA-wcvj-vpvw-9rr5",
"aliases": [
"CVE-2026-9689"
],
"details": "A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers (URIs), a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks this link, the client application might incorrectly prioritize attacker-controlled information over legitimate data. This vulnerability, known as HTTP parameter pollution, could allow an attacker to bypass security measures or gain unauthorized access to resources.",
"summary": "Keycloak Services has Improper Validation of Consistency within Input",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "26.5.0"
},
{
"last_affected": "26.6.4"
}
]
}
],
"package": {
"name": "org.keycloak:keycloak-services",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "26.4.7"
}
]
}
],
"package": {
"name": "org.keycloak:keycloak-services",
"ecosystem": "Maven"
}
}
],
"modified": "2026-08-05T18:31:20Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N"
}
],
"published": "2026-05-27T12:31:24Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9689",
"type": "ADVISORY"
},
{
"url": "https://github.com/keycloak/keycloak/issues/49430",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak/pull/49959",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak/commit/18832bcae5bebd5a1d66c2ec5fcd640e576fa625",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak/commit/1f58a4b79a258bcf2ef86b58fbf0016cdb91291f",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak/commit/267a1a33d4dc1eac7622614ba9772b4e1e35726f",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:50846",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:50847",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:50848",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:50849",
"type": "WEB"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-9689",
"type": "WEB"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481845",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak",
"type": "PACKAGE"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-1288"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-05-27T12:17:15Z",
"github_reviewed_at": "2026-07-01T18:54:49Z"
}
}