CVE-2026-40993
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is a unsafe deserialization vulnerability in Spring Security's JdbcAssertingPartyMetadataRepository. An attacker with database write access to the saml2_asserting_party_metadata table can inject malicious serialized Java objects into the verification_credentials or encryption_credentials columns. When Spring Security reads and deserializes these credentials, it could lead to remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 7.0.0, < 7.0.5.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Spring Security versionCheck your project dependencies (Maven pom.xml, Gradle build.gradle, or the spring-security-core JAR manifest) for the Spring Security version numberAffected if The version is 7.0.0 through 7.0.5 (inclusive)
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Confirm JdbcAssertingPartyMetadataRepository usageSearch your codebase for imports or references to org.springframework.security.saml2.provider.service.metadata.JdbcAssertingPartyMetadataRepository, or check if SAML2 asserting party metadata is configured via JdbcAssertingPartyMetadataRepository beanAffected if Your application uses JdbcAssertingPartyMetadataRepository to store SAML2 metadata in a database
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Verify saml2_asserting_party_metadata table existsQuery your database for the presence of a table named saml2_asserting_party_metadata (or similar), or review your database schema initialization scriptsAffected if The table exists and is being used by your application
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Check database write access to metadata tableReview database user permissions or application database connection configuration to determine which entities can write to the asserting party metadata tableAffected if Untrusted users or the application itself has write access to this table without strict administrative controls
You are affected if your Spring Security version is 7.0.0-7.0.5 AND you use JdbcAssertingPartyMetadataRepository with a database table that untrusted actors can write to.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped7.0.5.1
Restrict write access to the saml2_asserting_party_metadata table to trusted administrators only, and upgrade Spring Security to version 7.0.6 or later once the patch is available.
Spring Security 7.0.5.1
- 1. Locate the Spring Security dependency in your project's build configuration (pom.xml for Maven or build.gradle for Gradle)
- 2. Update the Spring Security version to 7.0.5.1 or later
- 3. For Maven, update the version in the <properties> section or dependency management, e.g., change <spring-security.version>7.0.5</spring-security.version> to <spring-security.version>7.0.5.1</spring-security.version>
- 4. For Gradle, update the version string, e.g., change implementation 'org.springframework.security:spring-security-core:7.0.5' to implementation 'org.springframework.security:spring-security-core:7.0.5.1'
- 5. Rebuild the project to ensure the new version is resolved
- 6. Run application tests to verify functionality after the upgrade
- 7. If using JdbcAssertingPartyMetadataRepository, verify the database schema is compatible with the updated library
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40993 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-40993 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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