Quick answers
- Is CVE-2026-118617 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-118617 being exploited in the wild.
- How severe is CVE-2026-118617?
- High severity, with a CVSS score of 7.8, published 28 October 2026.
- Which products and versions are affected?
- Ultralytics Ultralytics.
- Is there a fix for CVE-2026-118617?
- No fixed version is recorded yet. Restrict user interaction with the product and avoid opening files or visiting pages from untrusted sources until a patch is available. 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-2026-118617 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-118617?
- Check whether you run Ultralytics. 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
Restrict user interaction with the product and avoid opening files or visiting pages from untrusted sources until a patch is available.
Technical details
The vulnerability exists in the load_dataset_cache_file function, which deserializes untrusted data without proper validation, leading to remote code execution. The attack requires user interaction (opening a malicious file or visiting a malicious page) but executes in the context of the current user. No patch has been announced as of the advisory publication date.
Affected products
- Ultralytics Ultralytics
Timeline
- 2026-06-18: disclosed: Vulnerability reported to vendor
- 2026-10-28: advisory: Coordinated public release of advisory