CVE-2026-73851
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/microsoft/kiota/commit/430008e9d700b3fe80f206c672415cfbd8e830e7
- https://github.com/microsoft/kiota/commit/de3d18d9fe31ced4ac749728d3a2f94811f59268
- https://github.com/microsoft/kiota/issues/7912
- https://github.com/microsoft/kiota/pull/7910
- https://github.com/microsoft/kiota/pull/7913
- https://github.com/microsoft/kiota/releases/tag/v1.29.1
- https://github.com/microsoft/kiota/releases/tag/v1.34.0
- https://github.com/microsoft/kiota/security/advisories/GHSA-p5rm-jg5c-8c77
CWEs
CWE-22 CWE-829
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.