# CVE-2026-49865

## Summary

- **CVE ID:** CVE-2026-49865
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N)
- **CWE:** CWE-918
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 11, 2026

## Description

Kimai is an open-source time tracking application. Versions prior to 2.58.0 contain a server-side request forgery vulnerability in their invoice PDF preview and generation workflow. If an attacker can control Markdown content that is later rendered into an invoice PDF, such as `Customer.invoiceText`, the server-side PDF renderer will fetch remote image URLs embedded in Markdown image syntax. This allows the application server to issue outbound requests to attacker-controlled or internal targets during PDF rendering. The behavior can be used for internal network probing, server-side reachability checks, and potentially follow-on exploitation depending on deployment environment and accessible internal services. Version 2.58.0 patches the issue.

## Affected Products

- kimai — kimai (< 2.58.0)

## References

- [CNA](https://github.com/kimai/kimai/security/advisories/GHSA-pj8j-p4g4-4vw8)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._