CVE-2026-59867

Kiota is an OpenAPI based HTTP Client code generator. Prior to 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 1.32.5 by AllowedExternalOriginsStreamLoader and the --allowed-external-origins option.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

No configuration.

History

16 Jul 2026, 16:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-16 16:19

Updated : 2026-07-16 17:13

NVD link : CVE-2026-59867

Mitre link : CVE-2026-59867

CVE.ORG link : CVE-2026-59867

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

CWE-918

Server-Side Request Forgery (SSRF)

{"id": "CVE-2026-59867", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59867", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-16T15:35:45.668795Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "microsoft", "product": "kiota", "versions": [{"status": "affected", "version": "< 1.32.5"}]}]}], "published": "2026-07-16T16:19:15.620", "references": [{"url": "https://github.com/microsoft/kiota/commit/cccd798027f0a20db796b3df6c64f9897a39d7b1", "source": "security-advisories@github.com"}, {"url": "https://github.com/microsoft/kiota/pull/7888", "source": "security-advisories@github.com"}, {"url": "https://github.com/microsoft/kiota/releases/tag/v1.32.5", "source": "security-advisories@github.com"}, {"url": "https://github.com/microsoft/kiota/security/advisories/GHSA-rg4h-fpcp-2qm8", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-829"}, {"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "Kiota is an OpenAPI based HTTP Client code generator. Prior to 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 1.32.5 by AllowedExternalOriginsStreamLoader and the --allowed-external-origins option."}], "lastModified": "2026-07-16T17:13:54.870", "sourceIdentifier": "security-advisories@github.com"}