# CVE-2026-36418: JeecgBoot JimuReport RCE via Aviator expression injection

Source: https://junglewise.ai/threats/cve-2026-36418-jeecgboot-jimureport-rce-via-aviator-expression-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-20  
License: CC BY 4.0 with a link back

CVE-2026-36418 · Severity: critical · CVSS 9.1 · Published 2026-06-17

JimuReport, a popular data visualization and reporting tool, contains a critical security flaw that allows unauthorized individuals to run malicious code on the server. By sending a specially crafted request to the reporting interface, an attacker could take control of the system, access sensitive data, or disrupt business operations. This issue affects all versions up to and including 2.3.4.

Vendors: [JeecgBoot](https://junglewise.ai/threats/vendors/jeecgboot).

## Quick answers

**Is CVE-2026-36418 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-36418 being exploited in the wild.

**How severe is CVE-2026-36418?** Critical severity, with a CVSS score of 9.1, published 17 June 2026.

**Which products and versions are affected?** JeecgBoot JimuReport <= 2.3.4.

**Is there a fix for CVE-2026-36418?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-36418 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-36418?** Check whether you run JeecgBoot JimuReport at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A remote code execution (RCE) vulnerability exists in JimuReport versions 2.3.4 and earlier due to an expression injection flaw. The root cause is located in the /jmreport/executeSelectApi endpoint, which accepts user-supplied input and passes it directly to the Aviator expression engine's execute method without sufficient validation or sandboxing. A remote, unauthenticated attacker can exploit this by submitting malicious Aviator expressions via a network request, leading to arbitrary code execution on the underlying host. The vulnerability is classified as CWE-94 (Improper Control of Generation of Code).

## Affected products

- JeecgBoot JimuReport <= 2.3.4

## Timeline

- 2026-06-17: disclosed
- 2026-06-17: advisory

## References

- [https://github.com/Catherines77/code-au/blob/main/jimureport/aviator.md](https://github.com/Catherines77/code-au/blob/main/jimureport/aviator.md)

## Related threats

- [Jeecg JimuReport authentication bypass in report export endpoint](https://junglewise.ai/threats/cve-2026-58375-jeecg-jimureport-authentication-bypass-in-report-export-endpoint)