CVE-2026-54773

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Source
https://cve.org/CVERecord?id=CVE-2026-54773
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54773.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54773
Aliases
Published
2026-07-08T22:09:32.584Z
Modified
2026-07-15T01:48:55.536189041Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
CoreWCF: WS-Security signature substitution via document-wide Signature lookup
Details

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, CoreWCF WS-Security signature verification performs a document-wide ds:Signature lookup, allowing an unauthenticated remote attacker to place a SOAP header before wsse:Security and cause WSSecurityOneDotZeroReceiveSecurityHeader to verify an attacker-supplied signature instead of the security header signature. This issue is fixed in versions 1.8.1 and 1.9.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54773.json",
    "cwe_ids": [
        "CWE-347"
    ]
}
References

Affected packages

Git / github.com/corewcf/corewcf

Affected ranges

Type
GIT
Repo
https://github.com/corewcf/corewcf
Events
Introduced
39b2f02978e497955a560c72b5ccdff5c0dbcda1
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1f7a0811da5128db40fd7b868ae0aac0c581f91f
Fixed
7c0920fe16adc497efae82881ac0f1e4d7ac98d0
Fixed
0589692d4b9a41d21b34ac48281e95f6df7f4ce5
Fixed
30aef805270976c42477e3f2a05f4e563d86e247
Fixed
4618f24165ad018ad3ed2636bf8c3bc87d2a3be2
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.9.0"
        },
        {
            "fixed": "1.9.1"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "1.8.1"
        }
    ]
}

Affected versions

v1.*
v1.8.0
v1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54773.json"