Bug 2498054 - CVE-2026-40215 openvpn: OpenVPN: Server crash or memory leak due to race condition and use-after-free [fedora-all]
Summary: CVE-2026-40215 openvpn: OpenVPN: Server crash or memory leak due to race cond...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: openvpn
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Frank Lichtenheld
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["15b03665-94a2-4788-9ab6-5...
Depends On:
Blocks: CVE-2026-40215
TreeView+ depends on / blocked
 
Reported: 2026-07-08 14:19 UTC by Srikanth Balasubramanian
Modified: 2026-07-08 14:43 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-07-08 14:43:17 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Srikanth Balasubramanian 2026-07-08 14:19:39 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A race condition in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows remote attackers to potentially cause a server crash or leak heap memory via a use-after-free triggered during TLS session promotion.
Comment 1 Frank Lichtenheld 2026-07-08 14:43:17 UTC 
OpenVPN has already been updated to 2.6.21 and 2.7.5
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