Quick answers
- Is CVE-2026-122008 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122008 being exploited in the wild.
- How severe is CVE-2026-122008?
- Medium severity, with a CVSS score of 5, published 4 November 2026.
- Which products and versions are affected?
- Oqtane Framework before 10.3.0.
- Is there a fix for CVE-2026-122008?
- Yes: fixed in 10.3.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-122008 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-122008?
- Check whether you run Oqtane Framework 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: 10.3.0
Technical details
The vulnerability exists in the UploadFile endpoint of FileController.cs, where a caller-controlled URL parameter is passed to HttpClient.GetStreamAsync without validation of the scheme, host, or IP address. An authenticated user can supply a malicious URL (e.g., pointing to cloud instance metadata services or localhost management interfaces), and the server will fetch and save the response as a file in the attacker's user folder, which can then be retrieved via the download endpoint. This allows exfiltration of internal data or enumeration of internal network hosts and ports.
Affected products
- Oqtane Framework before 10.3.0
Timeline
- 2026-11-04: disclosed
- 2026-11-03: patched