CVE-2026-54779

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-54779
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54779.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54779
Aliases
Published
2026-07-08T22:07:46.453Z
Modified
2026-07-15T01:49:05.895307388Z
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: SAML token replay protection is inoperative
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 SAML token replay protection is inoperative because DefaultTokenReplayCache.TryAdd does not reject duplicate tokens when DetectReplayedTokens is enabled, allowing a captured token to be reused. This issue is fixed in versions 1.8.1 and 1.9.1.

Database specific 
{
    "cwe_ids": [
        "CWE-294",
        "CWE-613"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54779.json",
    "cna_assigner": "GitHub_M"
}
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
3800c4e2bb4c6fde00ddacefdc2221ef33d55621
Fixed
7b0b5231cf21b4b5c1fc3caac9981f8bee43823f
Fixed
84f8cff5a786b5aaa73448cb379d366a7df98238
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-2026-54779.json"