---
id: CVE-2026-49865
title: Kimai is an open-source time tracking application
summary: >-
  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 lat…
severity: medium
cvss: 5.3
cvssVector: '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
vendor: kimai
product: kimai
affected:
  - kimai < 2.58.0
patched:
  - kimai/kimai 2.58.0
published: '2026-09-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:16:44.370'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-49865'
references:
  - url: 'https://github.com/kimai/kimai/security/advisories/GHSA-pj8j-p4g4-4vw8'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-pj8j-p4g4-4vw8'
tags:
  - nvd
  - cve.org
  - exploit-available
  - ghsa
  - composer
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T19:58:34.278739Z'
cvssSource: cna
epss: 0.00327
epssPercentile: 0.25954
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/cyeezy08/Kimai-CVE-2026-49865-POC'
  checkedAt: '2026-09-21T15:29:18.384Z'
exploitAvailable: true
aliases:
  - GHSA-pj8j-p4g4-4vw8
ecosystem: composer
ingestedAt: '2026-07-10T16:05:09.804Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-49865)

Affected packages:

- `kimai/kimai <= 2.57.0`

Patched in:

- `kimai/kimai 2.58.0`

Source: https://github.com/advisories/GHSA-pj8j-p4g4-4vw8