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CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 09:05 UTC

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Expand	Severity	Score	Advisory	Title	Source	Flags	Published
	Medium	6.3	CVE-2026-106017	Improper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions. OpenVPNOpenVPN 3 Core Library	NVD		Oct 22 10:17 UTC
CVE-2026-106017Improper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions. Executive summary The advisory says the OpenVPN 3 Core library, versions 3.4 through 3.11.7, contains a certificate validation flaw that lets an attacker impersonate a VPN server. The vendor's fix is OpenVPN 3 Core Library v3.11.8, and the advisory does not state a severity score. Technical summary The flaw is improper certificate validation in the profile option parser (KUParse) of the OpenVPN 3 Core library, versions 3.4 through 3.11.7, which allows extended key usage restrictions to be bypassed. A man-in-the-middle attacker who holds any certificate issued by the client's configured CA, and whose certificate lacks a serverAuth extended key usage, can impersonate the VPN server, because remote-cert-tls from a client profile is silently discarded during configuration load. The fixed version is OpenVPN 3 Core Library v3.11.8. The advisory does not state a CVSS score, a workaround, exploitation in the wild, or detection guidance. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Summarized from community.openvpn.net/Security%20Announ…ents/CVE-2026-106017 Impact if exploited ConfidentialityHigh IntegrityNone AvailabilityNone How it is exploited Attack vector Network Attack complexity High Attack requirements Present Privileges required None User interaction None CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/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 Affects OpenVPN OpenVPN 3 Core Library NIST National Vulnerability DatabasePublished Oct 22, 2026 10:17 UTC Read the advisory

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