Description

A vulnerability in Spring Expression Language (SpEL) evaluation logic allows for arbitrary zero-argument method invocation, even within restricted or read-only contexts, which may allow an attacker to invoke unintended application logic.

Specifically, an application is vulnerable when the following condition is met:

• The application accepts and evaluates untrusted or user-controlled SpEL expressions.

Affected Spring Products and Versions

Spring Framework:

• 7.0.0 - 7.0.7
• 6.2.0 - 6.2.18
• 6.1.0 - 6.1.27
• 5.3.0 - 5.3.48

Versions that are no longer supported are also affected.

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.

No further mitigation steps are necessary.

Credit

This issue was discovered internally.

References

• https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L&version=3.1

History

• 2026-06-08: Initial vulnerability report published.