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PatchSiren cyber security CVE debrief

CVE-2026-41003 Spring CVE debrief

CVE-2026-41003 is a high-severity vulnerability in Spring Security, a popular Java framework for building secure web applications. An attacker able to influence values in RelyingPartyRegistration may be able to run arbitrary code on HTML forms generated by Spring Security filters. This vulnerability affects multiple versions of Spring Security, including 5.7.0 through 5.7.23, 5.8.0 through 5.8.25, 6.3.0 through 6.3.16, 6.4.0 through 6.4.16, 6.5.0 through 6.5.10, and 7.0.0 through 7.0.5.

Vendor
Spring
Product
Spring Security
CVSS
HIGH 7.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-07-17
Advisory published
2026-06-10
Advisory updated
2026-07-17

Who should care

Developers and administrators using Spring Security in their applications should be aware of this vulnerability and take immediate action to mitigate it.

Technical summary

The vulnerability has a CVSS score of 7.6 and is classified as HIGH severity. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N. The weakness is classified as CWE-79.

Defensive priority

High

Recommended defensive actions

  • Upgrade to a patched version of Spring Security: 5.7.24, 5.8.26, 6.3.17, 6.4.17, 6.5.11, or 7.0.6.
  • Apply the vendor advisory: [ref-4](https://spring.io/security/cve-2026-41003)

Evidence notes

The CVE record [cve-org] and NVD detail [nvd] provide additional information about the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-41003 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-41003

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

  • CVE-2026-41003 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-41003

    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.