Spring Security Advisories

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ONNX model cache defaults to world-writable predictable /tmp directory

MEDIUM | APRIL 27, 2026 | CVE-2026-40979

Description

In Spring AI, having access to a shared environment can expose the ONNX model used by the application.

Only applications that use TransformersEmbeddingModel and have the cache enabled, using the default location, are affected.

Affected Spring Products and Versions

Spring AI:

  • 1.0.0 - 1.0.5
  • 1.1.0 - 1.1.4

Affected Spring Products and Versions

Spring AI:

  • 1.1.0 - 1.1.4
  • 1.0.0 - 1.0.5

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
1.1.5OSS
1.0.6OSS

No further mitigation steps are necessary.

References

History

  • 2026-04-27: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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