CVEvulnerability

CVE-2026-54780

3.7 LOW Published 2026-07-08 Modified 2026-07-09 Official page ↗

Status: Deferred
Published: 2026-07-08
Last modified: 2026-07-09
Assigner: [email protected]
CVSS 3.1 ([email protected]): 3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses: CWE-327, CWE-757

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, the CoreWCF WS-Security 1.0 receive pipeline validates ds:SignedInfo SignatureMethod against the configured SecurityAlgorithmSuite but does not validate each ds:Reference DigestMethod, allowing a sender to use a rejected digest algorithm such as SHA-1 while the message is still accepted. This issue is fixed in versions 1.8.1 and 1.9.1.

Weakness · CWE (2)

CWE-327 Use of a Broken or Risky Cryptographic Algorithm weakness
CWE-757 Selection of Less-Secure Algorithm During Negotiation weakness

References

https://github.com/CoreWCF/CoreWCF/commit/58742312117cc671e6e9c694c2f5f9f669c17136 github.com
https://github.com/CoreWCF/CoreWCF/commit/9104e581cff3d047ace5e179bfae86807a44be1f github.com
https://github.com/CoreWCF/CoreWCF/commit/fea67b2cd73a5a85115c325d504303ec7382e133 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-4v55-cpmv-3vcm github.com

CVE-2026-54780

Description

Related

Weakness · CWE (2)

References