{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-92389", "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "state": "PUBLISHED", "assignerShortName": "curl", "dateReserved": "2026-09-16T08:12:48.831Z", "datePublished": "2026-10-20T20:21:45.378Z", "dateUpdated": "2026-10-20T20:21:45.378Z" }, "containers": { "cna": { "title": "TFTP direction confusion", "descriptions": [ { "lang": "en", "value": "libcurl's TFTP state machine fails to validate state transitions against the\nrequested transfer direction, accepting opening server responses for both\nreads and writes interchangeably. A malicious TFTP server can respond to a\ndownload request in a way that forces the client into transmit mode, prompting\nlibcurl to consume and transmit data from the handle's persistent\n`CURLOPT_READDATA` pointer - including data remaining from unrelated prior\noperations, such as an HTTP POST request executed on a reused handle." } ], "providerMetadata": { "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "shortName": "curl", "dateUpdated": "2026-10-20T20:21:45.378Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor" } ] } ], "affected": [ { "vendor": "curl", "product": "curl", "versions": [ { "version": "8.22.0", "status": "affected", "lessThanOrEqual": "8.22.0", "versionType": "semver" }, { "version": "8.21.0", "status": "affected", "lessThanOrEqual": "8.21.0", "versionType": "semver" }, { "version": "8.20.0", "status": "affected", "lessThanOrEqual": "8.20.0", "versionType": "semver" }, { 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"semver" }, { "version": "8.11.1", "status": "affected", "lessThanOrEqual": "8.11.1", "versionType": "semver" }, { "version": "8.11.0", "status": "affected", "lessThanOrEqual": "8.11.0", "versionType": "semver" }, { "version": "8.10.1", "status": "affected", "lessThanOrEqual": "8.10.1", "versionType": "semver" }, { "version": "8.10.0", "status": "affected", "lessThanOrEqual": "8.10.0", "versionType": "semver" }, { "version": "8.9.1", "status": "affected", "lessThanOrEqual": "8.9.1", "versionType": "semver" }, { "version": "8.9.0", "status": "affected", "lessThanOrEqual": "8.9.0", "versionType": "semver" }, { "version": "8.8.0", "status": "affected", "lessThanOrEqual": "8.8.0", "versionType": "semver" }, { "version": "8.7.1", "status": "affected", "lessThanOrEqual": "8.7.1", "versionType": "semver" }, { "version": "8.7.0", "status": "affected", "lessThanOrEqual": "8.7.0", "versionType": "semver" }, { "version": "8.6.0", "status": "affected", "lessThanOrEqual": "8.6.0", "versionType": 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"7.19.1", "versionType": "semver" }, { "version": "7.19.0", "status": "affected", "lessThanOrEqual": "7.19.0", "versionType": "semver" }, { "version": "7.18.2", "status": "affected", "lessThanOrEqual": "7.18.2", "versionType": "semver" }, { "version": "7.18.1", "status": "affected", "lessThanOrEqual": "7.18.1", "versionType": "semver" }, { "version": "7.18.0", "status": "affected", "lessThanOrEqual": "7.18.0", "versionType": "semver" }, { "version": "7.17.1", "status": "affected", "lessThanOrEqual": "7.17.1", "versionType": "semver" }, { "version": "7.17.0", "status": "affected", "lessThanOrEqual": "7.17.0", "versionType": "semver" }, { "version": "7.16.4", "status": "affected", "lessThanOrEqual": "7.16.4", "versionType": "semver" }, { "version": "7.16.3", "status": "affected", "lessThanOrEqual": "7.16.3", "versionType": "semver" }, { "version": "7.16.2", "status": "affected", "lessThanOrEqual": "7.16.2", "versionType": "semver" }, { "version": "7.16.1", "status": "affected", "lessThanOrEqual": "7.16.1", "versionType": "semver" }, { "version": "7.16.0", "status": "affected", "lessThanOrEqual": "7.16.0", "versionType": "semver" }, { "version": "7.15.5", "status": "affected", "lessThanOrEqual": "7.15.5", "versionType": "semver" }, { "version": "7.15.4", "status": "affected", "lessThanOrEqual": "7.15.4", "versionType": "semver" }, { "version": "7.15.3", "status": "affected", "lessThanOrEqual": "7.15.3", "versionType": "semver" }, { "version": "7.15.2", "status": "affected", "lessThanOrEqual": "7.15.2", "versionType": "semver" }, { "version": "7.15.1", "status": "affected", "lessThanOrEqual": "7.15.1", "versionType": "semver" }, { "version": "7.15.0", "status": "affected", "lessThanOrEqual": "7.15.0", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "references": [ { "url": "https://curl.se/docs/CVE-2026-92389.json", "name": "json" }, { "url": "https://curl.se/docs/CVE-2026-92389.html", "name": "www" }, { "url": "https://hackerone.com/reports/4022568", "name": "issue" } ], "credits": [ { "lang": "en", "value": "Joshua Rogers (Aisle Research)", "type": "finder" }, { "lang": "en", "value": "Daniel Stenberg", "type": "remediation developer" } ] } } }