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CVE-2026-40993 Spring CVE debrief

CVE-2026-40993 is a HIGH severity vulnerability in Spring Security 7.0.0 through 7.0.5. 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). This vulnerability has a CVSS score of 7.3 and a CVSS severity of HIGH.

Vendor
Spring
Product
Spring Security
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-07-17
Advisory published
2026-06-10
Advisory updated
2026-07-17

Who should care

Users of Spring Security 7.0.0 through 7.0.5 should be aware of this vulnerability and take steps to mitigate it.

Technical summary

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).

Defensive priority

HIGH

Recommended defensive actions

  • Apply the patch or upgrade to a non-affected version of Spring Security.
  • Restrict write permissions to the database table managed by JdbcAssertingPartyMetadataRepository (saml2_asserting_party_metadata) to only trusted users.

Evidence notes

The CVE-2026-40993 vulnerability was published on 2026-06-10T00:16:50.197Z and last modified on 2026-06-10T19:24:04.320Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40993 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40993

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-40993 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40993

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.