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CVE-2026-41706 Spring CVE debrief

CVE-2026-41706 is a vulnerability in Spring Security's CookieRequestCache and CookieServerRequestCache. These components store the pre-authentication request URL in a browser cookie to redirect users to their intended destination after a successful login. However, in affected versions, the full absolute URL is stored in the cookie and used without validation as the post-login redirect target. This allows attackers to manipulate the redirect URL, potentially leading to phishing attacks.

Vendor
Spring
Product
Spring Security
CVSS
MEDIUM 6.1
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 versions 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 should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability has a CVSS score of 6.1 and is classified as CWE-601: URL Redirection to Untrusted Site ('Open Redirect').

Defensive priority

medium

Recommended defensive actions

  • Upgrade to a non-vulnerable version of Spring Security.
  • Implement additional validation for redirect URLs.

Evidence notes

Evidence from the NVD and Spring Security documentation supports the details of this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-41706 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-41706

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

  • CVE-2026-41706 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-41706

    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.