Description
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.34.0, an attacker who controls or tampers with the OpenAPI description consumed by Kiota can supply a file reference that resolves outside the manifest package (e.g. ../../../../etc/passwd, an absolute path, or a file:// / http(s):// URI). When the generated manifest is deployed and consumed by an AI host, this can lead to inclusion or disclosure of files outside the intended package boundary. This vulnerability is fixed in 1.29.1 and 1.34.0.
References8
- github.com/microsoft/kiota/commit/430008e9d700b3fe80f206c672415…
- github.com/microsoft/kiota/commit/de3d18d9fe31ced4ac749728d3a2f…
- github.com/microsoft/kiota/issues/7912
- github.com/microsoft/kiota/pull/7910
- github.com/microsoft/kiota/pull/7913
- github.com/microsoft/kiota/releases/tag/v1.29.1
- github.com/microsoft/kiota/releases/tag/v1.34.0
- github.com/microsoft/kiota/security/advisories/GHSA-p5rm-jg5c-8…
Metrics
- CVSS 4.0
-
6.1
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 2% percentile: 83 · as of 11 November 2026
- CWE
- CWE-22CWE-829
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.