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CVE-2026-41843 Spring CVE debrief

CVE-2026-41843 is a Path Traversal vulnerability affecting Spring MVC and WebFlux applications when resolving static resources. The affected versions are Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; and 5.3.0 through 5.3.48. The CVSS score for this vulnerability is 5.9, with a severity rating of MEDIUM.

Vendor
Spring
Product
Spring Framework
CVSS
MEDIUM 5.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-07-17
Advisory published
2026-06-09
Advisory updated
2026-07-17

Who should care

Developers and administrators using Spring MVC and WebFlux applications, particularly those with publicly accessible static resources, should be aware of this vulnerability.

Technical summary

The vulnerability arises from improper handling of static resource resolution in Spring MVC and WebFlux applications, allowing attackers to perform Path Traversal attacks.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update to a non-vulnerable version of Spring Framework: 7.0.8 or later, 6.2.19 or later, 6.1.28 or later, or 5.3.49 or later.
  • Implement proper input validation and sanitization for static resource requests.
  • Review and restrict access to static resources, if necessary.

Evidence notes

The CVE-2026-41843 record was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-41843). Details can also be found on [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-41843).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-41843 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-41843

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-41843 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-41843

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.