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vuln-cve/data/2026/54xxx/CVE-2026-54780.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-54780",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-15T23:23:57.714Z",
"datePublished": "2026-07-08T22:15:06.161Z",
"dateUpdated": "2026-07-09T19:21:36.312Z"
},
"containers": {
"cna": {
"title": "CoreWCF: WS-Security Reference DigestMethod Algorithm-Suite Bypass",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-327",
"lang": "en",
"description": "CWE-327: Use of a Broken or Risky Cryptographic Algorithm",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-757",
"lang": "en",
"description": "CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-4v55-cpmv-3vcm",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-4v55-cpmv-3vcm"
},
{
"name": "https://github.com/CoreWCF/CoreWCF/commit/58742312117cc671e6e9c694c2f5f9f669c17136",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/CoreWCF/CoreWCF/commit/58742312117cc671e6e9c694c2f5f9f669c17136"
},
{
"name": "https://github.com/CoreWCF/CoreWCF/commit/9104e581cff3d047ace5e179bfae86807a44be1f",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/CoreWCF/CoreWCF/commit/9104e581cff3d047ace5e179bfae86807a44be1f"
},
{
"name": "https://github.com/CoreWCF/CoreWCF/commit/fea67b2cd73a5a85115c325d504303ec7382e133",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/CoreWCF/CoreWCF/commit/fea67b2cd73a5a85115c325d504303ec7382e133"
},
{
"name": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1"
},
{
"name": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1"
}
],
"affected": [
{
"vendor": "CoreWCF",
"product": "CoreWCF",
"versions": [
{
"version": ">= 1.9.0, < 1.9.1",
"status": "affected"
},
{
"version": "< 1.8.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-07-08T22:15:06.161Z"
},
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"source": {
"advisory": "GHSA-4v55-cpmv-3vcm",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-09T19:21:29.380282Z",
"id": "CVE-2026-54780",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-09T19:21:36.312Z"
}
}
]
}
}