{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-8924", "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "state": "PUBLISHED", "assignerShortName": "curl", "dateReserved": "2026-05-19T08:11:35.441Z", "datePublished": "2026-07-03T06:15:04.646Z", "dateUpdated": "2026-07-06T16:57:16.362Z" }, "containers": { "cna": { "title": "trailing dot domain super cookie", "descriptions": [ { "lang": "en", "value": "A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set\n'super cookies' that bypass the Public Suffix List check. This enables an\nattacker-controlled origin to inject cookies that curl subsequently scopes and\ntransmits to unrelated third-party domains." } ], "providerMetadata": { "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "shortName": "curl", "dateUpdated": "2026-07-03T06:15:04.646Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-201 Information Exposure Through Sent Data" } ] } ], "affected": [ { "vendor": "curl", "product": "curl", "versions": [ { "version": "8.20.0", "status": "affected", "lessThanOrEqual": "8.20.0", "versionType": "semver" }, { "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": 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"lessThanOrEqual": "7.51.0", "versionType": "semver" }, { "version": "7.50.3", "status": "affected", "lessThanOrEqual": "7.50.3", "versionType": "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" } ], "defaultStatus": "unaffected" } ], "references": [ { "url": "https://curl.se/docs/CVE-2026-8924.json", "name": "json" }, { "url": "https://curl.se/docs/CVE-2026-8924.html", "name": "www" }, { "url": "https://hackerone.com/reports/3733905", "name": "issue" } ], "credits": [ { "lang": "en", "value": "vegagent on hackerone", "type": "finder" }, { "lang": "en", "value": "Daniel Stenberg", "type": "remediation developer" } ] }, "adp": [ { "references": [ { "url": "https://hackerone.com/reports/3733905", "tags": [ "exploit" ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-06T16:56:31.860200Z", "id": "CVE-2026-8924", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-06T16:57:16.362Z" } } ] } }