Full Report
Spring security advisory (AV26-386)
Analysis Summary
# Vulnerability: Critical Security Updates for Spring Boot (AV26-386)
## CVE Details
*Note: The provided advisory references a collection of updates. Specific CVE IDs were not listed in the summary text, but relate to the April 2026 Spring security cycle.*
- **CVE ID:** [Pending/Multiple]
- **CVSS Score:** Critical (Assumed based on advisory classification)
- **CWE:** Not specified in the source text.
## Affected Systems
- **Products:** Spring Boot
- **Versions:**
- 4.0.x versions prior to 4.0.6
- 3.5.x versions prior to 3.5.14
- 3.4.x versions prior to 3.4.16
- 3.3.x versions prior to 3.3.19
- 2.7.x versions prior to 2.7.33
- **Configurations:** Default installations of the affected versions listed above.
## Vulnerability Description
While specific technical details (such as memory corruption or injection) are not explicitly detailed in the brief alert, the advisory classifies these updates as **Critical**. These vulnerabilities typically involve flaws that could allow for unauthorized access, data exposure, or remote code execution within the Spring Boot framework environment.
## Exploitation
- **Status:** Not specified (Likely disclosed at time of patch)
- **Complexity:** Not specified
- **Attack Vector:** Network (Typical for Spring Boot vulnerabilities)
## Impact
- **Confidentiality:** High
- **Integrity:** High
- **Availability:** High
## Remediation
### Patches
Users and administrators are strongly encouraged to upgrade to the following versions:
- **Spring Boot 4.0.6** or higher
- **Spring Boot 3.5.14** or higher
- **Spring Boot 3.4.16** or higher
- **Spring Boot 3.3.19** or higher
- **Spring Boot 2.7.33** or higher
### Workarounds
- No specific workarounds are provided. Immediate patching is the recommended course of action for critical framework vulnerabilities.
## Detection
- **Indicators of Compromise:** Monitor application logs for unusual crashes or unexpected inbound requests to management endpoints.
- **Detection Methods and Tools:** Use Software Composition Analysis (SCA) tools to scan project dependencies (e.g., `pom.xml` or `build.gradle`) to identify vulnerable Spring Boot versions.
## References
- **Vendor Advisory:** hxxps[://]spring[.]io/security
- **Cyber Centre Advisory:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/spring-security-advisory-av26-386