CVEvulnerability
CVE-2026-54776
4.4 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-07-08
- Last modified
- 2026-07-09
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.4 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-306
Description
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, a CoreWCF service hosted on Unix Domain Sockets with PosixIdentity client credentials can accept connections that skip the application/unixposix stream upgrade before dispatching messages, bypassing framing-layer identity checks in UnixPosixIdentitySecurityUpgradeProvider. This issue is fixed in versions 1.8.1 and 1.9.1.
Related
Weakness · CWE (1)
- CWE-306 Missing Authentication for Critical Functionality weakness
References
- https://github.com/CoreWCF/CoreWCF/commit/994431268e3362c0cd126450fe2a135c202551f3 github.com
- https://github.com/CoreWCF/CoreWCF/commit/9af16955e51a57348dafce0019e259a092ef7440 github.com
- https://github.com/CoreWCF/CoreWCF/commit/f2f1a05927a88b8a75fa0582fa8ed75eb891e463 github.com
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1 github.com
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1 github.com
- https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-wjpq-6766-7f5j github.com