{
"id": "GHSA-2q7c-5gjm-7q23",
"aliases": [
"CVE-2026-40993"
],
"details": "An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository (saml2_asserting_party_metadata) may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption credentials (verification_credentials and encryption_credentials, respectively).\n\nAffected versions:\nSpring Security 7.0.0 through 7.0.5.",
"summary": "Spring Security SAML2 Service Provider is vulnerable to Deserialization of Untrusted Data via JdbcAssertingPartyMetadataRepository",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.0.6"
}
]
}
],
"package": {
"name": "org.springframework.security:spring-security-saml2-service-provider",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 7.0.5"
}
}
],
"modified": "2026-08-12T17:04:26Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H"
}
],
"published": "2026-06-10T00:31:51Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40993",
"type": "ADVISORY"
},
{
"url": "https://github.com/spring-projects/spring-security",
"type": "PACKAGE"
},
{
"url": "https://github.com/spring-projects/spring-security/releases/tag/7.0.6",
"type": "WEB"
},
{
"url": "https://spring.io/security/cve-2026-40993",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": "2026-06-10T00:16:50Z",
"github_reviewed_at": "2026-08-12T17:04:26Z"
}
}