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CVE-2026-40993highCWE-502

Unfiltered Java Native Deserialization of SAML 2.0 Asserting Party Credentials BLOB Database Entry

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.3epss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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). Affected versions: Spring Security 7.0.0 through 7.0.5.
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H
Affected products
Spring · Spring Security