## Spring Boot High-Severity Flaw: Predictable Temp Directory Without Ownership Check Requires Immediate Patch
A high-severity vulnerability in the Spring Boot framework has been disclosed, stemming from the framework's acceptance of predictable temporary directories without performing ownership verification. The flaw, tracked in Spring Boot's issue tracker, creates a potential attack surface that could be exploited under specific conditions involving untrusted temporary file locations. Security researchers are urging organizations running affected versions to apply patches without delay.

The vulnerability specifically relates to how Spring Boot handles temporary directories during runtime operations. When the framework accepts a temp directory path without validating that the current user or process has legitimate ownership or control over that location, it opens the door to potential manipulation by malicious actors who could influence file placement or retrieval. This class of vulnerability is particularly concerning in multi-tenant environments, shared hosting setups, or any deployment where untrusted code might execute alongside legitimate applications.

The Spring project has already released patched versions addressing this issue. Organizations running Spring Boot 3.x should update to version 3.5.14 or later, while those on the 4.x line should upgrade to version 4.0.6 or later. The maintainers have emphasized that no workarounds exist for this vulnerability, making the version update the sole remediation path. Organizations are advised to audit their current deployments, identify which Spring Boot versions are in production, and prioritize patching any systems handling sensitive data or operating in exposed network positions. Given the framework's widespread adoption across enterprise Java applications, this vulnerability has the potential to affect a significant portion of backend infrastructure globally.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: spring-boot, java, vulnerability, temp-directory, security-patch
- **Credibility**: unverified
- **Published**: 2026-05-07 09:31:42
- **ID**: 80112
- **URL**: https://whisperx.ai/en/intel/80112