CVE-2026-54774
- Source
- https://cve.org/CVERecord?id=CVE-2026-54774
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54774.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-54774
- Aliases
- Published
- 2026-07-08T22:17:07Z
- Modified
- 2026-10-28T02:30:21Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate
- 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, SamlSerializer skips final SignatureValue verification when a CoreWCF service validates SAML tokens using a non-X.509 signing token, allowing an attacker to reference a non-X.509 SecurityToken key identifier and bypass assertion signature verification. This issue is fixed in versions 1.8.1 and 1.9.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-345", "CWE-347" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54774.json" }- References
-
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54774.json
- https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-rpj7-hr7h-w6p9
- https://nvd.nist.gov/vuln/detail/CVE-2026-54774
- https://github.com/CoreWCF/CoreWCF/commit/65d09022749854ba943e376aefb958dec05b00d8
- https://github.com/CoreWCF/CoreWCF/commit/b914495ce63c44924664643b60a262e7595081a4
- https://github.com/CoreWCF/CoreWCF/commit/e7454132876ecc7e2cf80e541a44376eeb54979b
Affected packages
Git / github.com/corewcf/corewcf
Affected ranges
- Type
- GIT
- Repo
- https://github.com/corewcf/corewcf
- Events
-
IntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "1.9.0" }, { "fixed": "1.9.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "0" }, { "fixed": "1.8.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "65d09022749854ba943e376aefb958dec05b00d8" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "b914495ce63c44924664643b60a262e7595081a4" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "e7454132876ecc7e2cf80e541a44376eeb54979b" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.8.1", "range": [ { "fixed": "7c0920fe16adc497efae82881ac0f1e4d7ac98d0" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v1.9.1", "range": [ { "fixed": "1f7a0811da5128db40fd7b868ae0aac0c581f91f" } ], "source": "REFERENCES_TAG" } ] }