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.
Severity (CVSS)
| Base score | 3.7 |
|---|---|
| Severity | Low |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
| Provided by | CNA |
Weaknesses
- CWE-327 — CWE-327: Use of a Broken or Risky Cryptographic Algorithm
- CWE-757 — CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Affected products
| Vendor | Product | Versions |
|---|---|---|
| CoreWCF | CoreWCF | >= 1.9.0, < 1.9.1; < 1.8.1 |
References
- https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-4v55-cpmv-3vcm (x_refsource_CONFIRM)
- https://github.com/CoreWCF/CoreWCF/commit/58742312117cc671e6e9c694c2f5f9f669c17136 (x_refsource_MISC)
- https://github.com/CoreWCF/CoreWCF/commit/9104e581cff3d047ace5e179bfae86807a44be1f (x_refsource_MISC)
- https://github.com/CoreWCF/CoreWCF/commit/fea67b2cd73a5a85115c325d504303ec7382e133 (x_refsource_MISC)
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1 (x_refsource_MISC)
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1 (x_refsource_MISC)
Generated from the official CVE List on 09 Jul 2026 07:08 UTC.