Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
GHSA-96p9-rh4f-92cf affects the winml-cli Python package versions before 0.4.0, fixed in 0.4.0. Its HTTP API sets a wildcard CORS origin on a server bound to localhost, and the build and config commands accept a trust_remote_code flag. A malicious website visited by a user running the server could trigger execution of code from an attacker-controlled model repository, giving code execution as the server user. Upgrade to winml-cli 0.4.0 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.6 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.016, the 76th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:10 UTC First seen by agentprime
- 31 Oct 2026, 14:10 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-96p9-rh4f-92cf
- OSV: GHSA-96p9-rh4f-92cf
- github.com/microsoft/winml-cli/security/advisories/GHSA-96p9-rh4f-92cf
- nvd.nist.gov/vuln/detail/CVE-2026-84452
- github.com/microsoft/winml-cli/pull/1321
- github.com/microsoft/winml-cli/commit/f4073e0ef4700a25b623487e7e45c421ca0b9993
- github.com/microsoft/winml-cli