{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-5773", "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "state": "PUBLISHED", "assignerShortName": "curl", "dateReserved": "2026-04-08T06:51:05.356Z", "datePublished": "2026-05-13T08:27:42.342Z", "dateUpdated": "2026-05-13T17:45:08.173Z" }, "containers": { "cna": { "title": "wrong reuse of SMB connection", "descriptions": [ { "lang": "en", "value": "libcurl might in some circumstances reuse the wrong connection for SMB(S)\ntransfers.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a network transfer operation that was requested by an\napplication could wrongfully reuse an existing SMB connection to the same\nserver that was using a different 'share' than the new subsequent transfer\nshould.\n\nThis could in unlucky situations lead to the download of the wrong file or the\nupload of a file to the wrong place. When this happens, the same credentials\nare used and the server name is the same." } ], "providerMetadata": { "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "shortName": "curl", "dateUpdated": "2026-05-13T08:27:42.342Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-488 Exposure of Data Element to Wrong Session" } ] } ], "affected": [ { "vendor": "curl", "product": "curl", "versions": [ { "version": "8.19.0", "status": "affected", "lessThanOrEqual": "8.19.0", "versionType": "semver" }, { "version": "8.18.0", "status": "affected", "lessThanOrEqual": "8.18.0", "versionType": "semver" }, { "version": "8.17.0", "status": "affected", "lessThanOrEqual": "8.17.0", "versionType": "semver" }, { "version": "8.16.0", "status": "affected", "lessThanOrEqual": "8.16.0", "versionType": "semver" }, { "version": "8.15.0", "status": "affected", "lessThanOrEqual": "8.15.0", "versionType": "semver" }, { "version": "8.14.1", "status": "affected", "lessThanOrEqual": "8.14.1", "versionType": "semver" }, { "version": "8.14.0", "status": "affected", "lessThanOrEqual": "8.14.0", "versionType": "semver" }, { "version": "8.13.0", "status": "affected", "lessThanOrEqual": "8.13.0", "versionType": "semver" }, { "version": "8.12.1", "status": "affected", "lessThanOrEqual": "8.12.1", "versionType": "semver" }, { "version": "8.12.0", "status": "affected", "lessThanOrEqual": "8.12.0", "versionType": "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": "semver" }, { "version": "8.5.0", "status": "affected", "lessThanOrEqual": "8.5.0", "versionType": "semver" }, { "version": "8.4.0", "status": "affected", "lessThanOrEqual": "8.4.0", "versionType": "semver" }, { "version": "8.3.0", "status": "affected", "lessThanOrEqual": "8.3.0", "versionType": "semver" }, { "version": "8.2.1", "status": "affected", "lessThanOrEqual": "8.2.1", "versionType": "semver" }, { "version": "8.2.0", "status": "affected", "lessThanOrEqual": "8.2.0", "versionType": "semver" }, { "version": "8.1.2", "status": "affected", "lessThanOrEqual": "8.1.2", "versionType": "semver" }, { "version": "8.1.1", "status": "affected", "lessThanOrEqual": "8.1.1", "versionType": "semver" }, { "version": "8.1.0", "status": "affected", "lessThanOrEqual": "8.1.0", "versionType": "semver" }, { "version": "8.0.1", "status": "affected", "lessThanOrEqual": "8.0.1", "versionType": "semver" }, { "version": "8.0.0", "status": "affected", "lessThanOrEqual": "8.0.0", "versionType": "semver" }, { "version": "7.88.1", "status": "affected", "lessThanOrEqual": "7.88.1", "versionType": "semver" }, { "version": "7.88.0", "status": "affected", "lessThanOrEqual": "7.88.0", "versionType": "semver" }, { "version": "7.87.0", "status": "affected", "lessThanOrEqual": "7.87.0", "versionType": "semver" }, { "version": "7.86.0", "status": "affected", "lessThanOrEqual": "7.86.0", "versionType": "semver" }, { "version": "7.85.0", "status": "affected", "lessThanOrEqual": "7.85.0", "versionType": "semver" }, { "version": "7.84.0", "status": "affected", "lessThanOrEqual": "7.84.0", "versionType": "semver" }, { "version": "7.83.1", "status": "affected", "lessThanOrEqual": "7.83.1", "versionType": "semver" }, { "version": "7.83.0", "status": "affected", "lessThanOrEqual": "7.83.0", "versionType": "semver" }, { "version": "7.82.0", "status": "affected", "lessThanOrEqual": "7.82.0", "versionType": "semver" }, { "version": "7.81.0", "status": "affected", "lessThanOrEqual": "7.81.0", "versionType": "semver" }, { "version": "7.80.0", "status": "affected", "lessThanOrEqual": "7.80.0", "versionType": "semver" }, { "version": "7.79.1", "status": "affected", "lessThanOrEqual": "7.79.1", "versionType": "semver" }, { "version": "7.79.0", "status": "affected", "lessThanOrEqual": "7.79.0", "versionType": "semver" }, { "version": "7.78.0", "status": "affected", "lessThanOrEqual": "7.78.0", "versionType": "semver" }, { "version": "7.77.0", "status": "affected", "lessThanOrEqual": "7.77.0", "versionType": "semver" }, { "version": "7.76.1", "status": 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"semver" }, { "version": "7.50.2", "status": "affected", "lessThanOrEqual": "7.50.2", "versionType": "semver" }, { "version": "7.50.1", "status": "affected", "lessThanOrEqual": "7.50.1", "versionType": "semver" }, { "version": "7.50.0", "status": "affected", "lessThanOrEqual": "7.50.0", "versionType": "semver" }, { "version": "7.49.1", "status": "affected", "lessThanOrEqual": "7.49.1", "versionType": "semver" }, { "version": "7.49.0", "status": "affected", "lessThanOrEqual": "7.49.0", "versionType": "semver" }, { "version": "7.48.0", "status": "affected", "lessThanOrEqual": "7.48.0", "versionType": "semver" }, { "version": "7.47.1", "status": "affected", "lessThanOrEqual": "7.47.1", "versionType": "semver" }, { "version": "7.47.0", "status": "affected", "lessThanOrEqual": "7.47.0", "versionType": "semver" }, { "version": "7.46.0", "status": "affected", "lessThanOrEqual": "7.46.0", "versionType": "semver" }, { "version": "7.45.0", "status": "affected", "lessThanOrEqual": "7.45.0", "versionType": "semver" }, { "version": "7.44.0", "status": "affected", "lessThanOrEqual": "7.44.0", "versionType": "semver" }, { "version": "7.43.0", "status": "affected", "lessThanOrEqual": "7.43.0", "versionType": "semver" }, { "version": "7.42.1", "status": "affected", "lessThanOrEqual": "7.42.1", "versionType": "semver" }, { "version": "7.42.0", "status": "affected", "lessThanOrEqual": "7.42.0", "versionType": "semver" }, { "version": "7.41.0", "status": "affected", "lessThanOrEqual": "7.41.0", "versionType": "semver" }, { "version": "7.40.0", "status": "affected", "lessThanOrEqual": "7.40.0", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "references": [ { "url": "https://curl.se/docs/CVE-2026-5773.json", "name": "json" }, { "url": "https://curl.se/docs/CVE-2026-5773.html", "name": "www" }, { "url": "https://hackerone.com/reports/3650689", "name": "issue" } ], "credits": [ { "lang": "en", "value": "Osama Hamad", "type": "finder" }, { "lang": "en", "value": "Daniel Stenberg", "type": "remediation developer" } ] }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "http://www.openwall.com/lists/oss-security/2026/04/29/9" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-13T09:05:23.608Z" } }, { "references": [ { "url": "https://hackerone.com/reports/3650689", "tags": [ "exploit" ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-13T17:45:00.901945Z", "id": "CVE-2026-5773", "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": "2026-05-13T17:45:08.173Z" } } ] } }