Quick answers
- Is CVE-2026-121660 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-121660 being exploited in the wild.
- How severe is CVE-2026-121660?
- High severity, with a CVSS score of 7.5, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Visual Studio Code.
- Is there a fix for CVE-2026-121660?
- 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-2026-121660 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-121660?
- Check whether you run Microsoft Visual Studio Code. 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
Visual Studio Code fails to maintain a complete allowlist/blocklist of disallowed inputs, permitting attackers to craft payloads that bypass input validation checks designed to enforce a security boundary. The vulnerability is exploitable over the network without authentication, enabling remote attackers to circumvent the security feature. A fix exists in the form of a security update from Microsoft.
Affected products
- Microsoft Visual Studio Code
Timeline
- 2026-11-10: disclosed