P4Verified

CVE-2026-72923: OpenAPI.NET >= 3.0.0, < 3.10.0, >= 2.0.0-preview.11, < 2.12.0, < 1.6.30

CVE-2026-72923 affects Microsoft.OpenApi.YamlReader. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.012 (percentile 0.674), scored 13-Oct-2026. Affected range: >= 3.0.0, < 3.10.0. Fixed version: 3.10.0. Affected range: >= 2.0.0-preview.11, < 2.12.0. Fixed version: 2.12.0. Affected range: < 1.6.30. Fixed version: 1.6.30.

Affected technology

OpenAPI.NET · >= 3.0.0, < 3.10.0, >= 2.0.0-preview.11, < 2.12.0, < 1.6.30
microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 15-Oct-2026 01:10 UTC

CWE: CWE-400
Product: Microsoft.OpenApi.YamlReader
CCR priority: 30.3 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
EPSS: 0.012 · percentile 0.674 · 2026-10-13
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-15 01:13:25.227066+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-15 01:07:31.726917+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-72923.html