PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-36418 JimuReport CVE debrief

CVE-2026-36418 is a critical vulnerability in JimuReport, a reporting tool, that allows remote code execution due to improper handling of Aviator expressions. The vulnerability affects versions 2.3.4 and below. The /jmreport/executeSelectApi endpoint is particularly vulnerable as it passes user-supplied input directly to the Aviator expression engine without adequate validation. This allows attackers to execute arbitrary code, posing a significant risk to affected systems. The CVSS score for this vulnerability is 9.1, indicating a critical severity level. Organizations using affected versions of JimuReport should take immediate action to mitigate this vulnerability.

Vendor
JimuReport
Product
JimuReport
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-22
Advisory published
2026-06-17
Advisory updated
2026-06-22

Who should care

Organizations using JimuReport versions 2.3.4 and below should prioritize patching this vulnerability. Developers and administrators responsible for maintaining reporting systems should be aware of the risks associated with this vulnerability and take steps to secure their environments.

Technical summary

The vulnerability in JimuReport is caused by the improper handling of Aviator expressions. Specifically, the /jmreport/executeSelectApi endpoint does not adequately validate user-supplied input before passing it to the Aviator expression engine. This allows attackers to inject and execute arbitrary code, leading to remote code execution. The vulnerability has a CVSS score of 9.1 and is classified as critical.

Defensive priority

high

Recommended defensive actions

  • Patch JimuReport to a version above 2.3.4 immediately.
  • Restrict access to the /jmreport/executeSelectApi endpoint.
  • Implement input validation and sanitization for user-supplied input.
  • Monitor systems for suspicious activity.
  • Consider using a Web Application Firewall (WAF) to detect and prevent attacks.
  • Regularly review and update dependencies to ensure the latest security patches are applied.

Evidence notes

The information provided is based on data from the National Vulnerability Database (NVD) and the Common Vulnerabilities and Exposures (CVE) database. The CVE record and NVD detail pages provide official information about the vulnerability, including its CVSS score and affected versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-36418 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-36418

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

  • CVE-2026-36418 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-36418

    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.