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vuln-cve/data/2026/77xxx/CVE-2026-77582.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-77582",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-20T20:35:30.148Z",
"datePublished": "2026-09-21T16:43:43.175Z",
"dateUpdated": "2026-09-23T19:16:39.000Z"
},
"containers": {
"cna": {
"title": "Tinyauth: User enumeration attack by timing oracle",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"lang": "en",
"description": "CWE-208: Observable Timing Discrepancy",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758"
},
{
"name": "https://github.com/tinyauthapp/tinyauth/pull/1004",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinyauthapp/tinyauth/pull/1004"
},
{
"name": "https://github.com/tinyauthapp/tinyauth/commit/c22925c2fba981875d0a2b09dd3ee41c0ae4c310",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinyauthapp/tinyauth/commit/c22925c2fba981875d0a2b09dd3ee41c0ae4c310"
},
{
"name": "https://github.com/tinyauthapp/tinyauth/releases/tag/v5.1.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinyauthapp/tinyauth/releases/tag/v5.1.0"
}
],
"affected": [
{
"vendor": "tinyauthapp",
"product": "tinyauth",
"versions": [
{
"version": "< 5.1.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-09-21T16:43:43.175Z"
},
"descriptions": [
{
"lang": "en",
"value": "Tinyauth is an authentication and authorization server. Prior to 5.1.0, Tinyauth exposes a remotely observable timing difference between authentication attempts for existing and nonexistent local usernames. internal/controller/user_controller.go loginHandler and internal/middleware/context_middleware.go basicAuth return quickly after internal/service/auth_service.go reports a missing user, while an existing user causes bcrypt password verification work. Repeated measurements can therefore disclose valid usernames and support targeted credential attacks. This issue is fixed in version 5.1.0."
}
],
"source": {
"advisory": "GHSA-456h-ww26-f758",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-23T19:16:31.589447Z",
"id": "CVE-2026-77582",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"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": "2026-09-23T19:16:39.000Z"
}
}
]
}
}