Quick answers
- Is CVE-2026-124435 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124435 being exploited in the wild.
- How severe is CVE-2026-124435?
- Medium severity, with a CVSS score of 4.8, published 8 November 2026.
- Which products and versions are affected?
- OpenRemote Core before 1.32.2.
- Is there a fix for CVE-2026-124435?
- Yes: fixed in 1.32.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124435 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-124435?
- Check whether you run OpenRemote Core 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.
How to fix
- Fixed in: 1.32.2
Technical details
The vulnerability is a stored cross-site scripting flaw in the Manager configuration image upload endpoint (POST /api/{realm}/configuration/manager/file). Authenticated users with write:admin permissions can upload HTML or SVG files containing JavaScript; the saveManagerConfigImage() method writes Base64-decoded content without validating file type. An unauthenticated GET endpoint serves these files with MIME types determined by file extension (text/html for .html, image/svg+xml for .svg), allowing JavaScript execution in the browser within the application's origin.
Affected products
- OpenRemote core before 1.32.2
Timeline
- 2026-10-23: disclosed
- 2026-11-08: advisory