Quick answers
- Is CVE-2026-75340 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75340 being exploited in the wild.
- How severe is CVE-2026-75340?
- Critical severity, with a CVSS score of 9.1, published 26 August 2026.
- Which products and versions are affected?
- JetLinks Community <= 2.11.
- Is there a fix for CVE-2026-75340?
- 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-2026-75340 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-75340?
- Check whether you run JetLinks Community 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
The /device/instance/{productId}/property-metadata/import endpoint accepts a user-supplied fileUrl parameter and passes it directly to an input stream handler without validation. If the URL starts with "http", it is fetched via WebClient (enabling SSRF), otherwise it is opened as a local file via FileInputStream (enabling arbitrary local file read). An attacker who authenticates with default credentials (admin / JetLinks.C0mmVn1ty) can craft requests to scan internal networks, probe open ports, access internal services, or read local files on the server. No network-level authentication bypass is required—exploitation depends only on the default credentials not being changed.
Affected products
- JetLinks JetLinks Community <= 2.11
Timeline
- 2026-08-26: disclosed