PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-41848 Spring CVE debrief

CVE-2026-41848 is a Regular Expression Denial of Service (ReDoS) vulnerability in Spring Framework. Applications may be vulnerable if an attacker provides a malicious pattern to certain methods in AntPathMatcher. 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.

Vendor
Spring
Product
Spring Framework
CVSS
LOW 3.7
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

Users of Spring Framework versions 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 should apply patches or mitigations.

Technical summary

The vulnerability exists in the AntPathMatcher class, specifically in the match, matchStart, and extractUriTemplateVariables methods. An attacker can exploit this by providing a specially crafted pattern that causes a denial of service.

Defensive priority

Low

Recommended defensive actions

  • Apply patches or updates to Spring Framework versions 7.0.8, 6.2.19, 6.1.28, or 5.3.49.
  • Use a different path matching strategy if possible.
  • Limit the input length and complexity of patterns.

Evidence notes

The CVE-2026-41848 record and NVD detail provide information on the vulnerability and affected versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-41848 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-41848

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

  • CVE-2026-41848 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-41848

    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.