High 7.1Published Jul 16, 2026

CVE-2026-59867Kiota: Generation-time SSRF + remote/local file inclusion via unrestricted $ref

Updated under an hour ago (Oct 27, 2026, 11:10 AM ET)

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It affects microsoft kiota. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for microsoft kiota

Exploited in the last 30 days

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, Kiota resolved OpenAPI $ref values by fetching remote http(s) URLs and reading local absolute or out-of-tree file paths, allowing `kiota generate` on an attacker-controlled or attacker-influenced description to perform build-time SSRF, remote file inclusion, and local file inclusion by inlining external schemas such as REMOTE_KIOTA_PROP or Leaked into generated clients. This issue is fixed in version 1.29.1 and 1.32.5 by AllowedExternalOriginsStreamLoader and the --allowed-external-origins option.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-22, CWE-829, CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

microsoft kiota microsoft:kiota (from the name)	from 1.30.0, < 1.31.1; before 1.29.1	CNA record

References

References

https://github.com/microsoft/kiota/security/advisories/GHSA-rg4h-fpcp-2qm8	x-refsource-confirm
https://github.com/microsoft/kiota/pull/7888	x-refsource-misc
https://github.com/microsoft/kiota/commit/cccd798027f0a20db796b3df6c64f9897a39d7b1	x-refsource-misc
https://github.com/microsoft/kiota/releases/tag/v1.32.5	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.