{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-3784", "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "state": "PUBLISHED", "assignerShortName": "curl", "dateReserved": "2026-03-08T05:09:52.279Z", "datePublished": "2026-03-11T10:09:21.418Z", "dateUpdated": "2026-09-15T06:02:54.443Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "shortName": "curl", "dateUpdated": "2026-09-15T06:02:54.443Z" }, "title": "wrong proxy connection reuse with credentials", "descriptions": [ { "lang": "en", "value": "curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a\nserver, even if the new request uses different credentials for the HTTP proxy.\nThe proper behavior is to create or use a separate connection." } ], "affected": [ { "vendor": "curl", "product": "curl", "versions": [ { "version": "7.7.0", "status": "affected", "versionType": "semver", "lessThan": "8.14.2" }, { "version": 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"status": "affected" }, { "version": "8.11.0", "status": "affected" }, { "version": "8.10.1", "status": "affected" }, { "version": "8.10.0", "status": "affected" }, { "version": "8.9.1", "status": "affected" }, { "version": "8.9.0", "status": "affected" }, { "version": "8.8.0", "status": "affected" }, { "version": "8.7.1", "status": "affected" }, { "version": "8.7.0", "status": "affected" }, { "version": "8.6.0", "status": "affected" }, { "version": "8.5.0", "status": "affected" }, { "version": "8.4.0", "status": "affected" }, { "version": "8.3.0", "status": "affected" }, { "version": "8.2.1", "status": "affected" }, { "version": "8.2.0", "status": "affected" }, { "version": "8.1.2", "status": "affected" }, { "version": "8.1.1", "status": "affected" }, { "version": "8.1.0", "status": "affected" }, { "version": "8.0.1", "status": "affected" }, { "version": "8.0.0", "status": "affected" }, { "version": "7.88.1", "status": "affected" }, { "version": "7.88.0", "status": "affected" }, { "version": "7.87.0", "status": "affected" }, { "version": "7.86.0", "status": "affected" }, { "version": "7.85.0", "status": "affected" }, { "version": "7.84.0", "status": "affected" }, { "version": "7.83.1", "status": "affected" }, { "version": "7.83.0", "status": "affected" }, { "version": "7.82.0", "status": "affected" }, { "version": "7.81.0", "status": "affected" }, { "version": "7.80.0", "status": "affected" }, { "version": "7.79.1", "status": "affected" }, { "version": "7.79.0", "status": "affected" }, { "version": "7.78.0", "status": "affected" }, { "version": "7.77.0", "status": "affected" }, { "version": "7.76.1", "status": "affected" }, { "version": "7.76.0", "status": "affected" }, { "version": "7.75.0", "status": "affected" }, { "version": "7.74.0", "status": "affected" }, { "version": "7.73.0", "status": "affected" }, { "version": "7.72.0", "status": "affected" }, { "version": "7.71.1", "status": "affected" }, { "version": "7.71.0", "status": "affected" }, { "version": "7.70.0", "status": "affected" }, { "version": "7.69.1", "status": "affected" }, { "version": "7.69.0", "status": "affected" }, { "version": "7.68.0", "status": "affected" }, { "version": "7.67.0", "status": "affected" }, { "version": "7.66.0", "status": "affected" }, { "version": "7.65.3", "status": "affected" }, { "version": "7.65.2", "status": "affected" }, { "version": "7.65.1", "status": "affected" }, { "version": "7.65.0", "status": "affected" }, { "version": "7.64.1", "status": "affected" }, { "version": "7.64.0", "status": "affected" }, { "version": "7.63.0", "status": "affected" }, { "version": "7.62.0", "status": "affected" }, { "version": "7.61.1", "status": "affected" }, { "version": "7.61.0", "status": "affected" }, { "version": "7.60.0", "status": "affected" }, { "version": "7.59.0", "status": "affected" }, { "version": "7.58.0", "status": "affected" }, { "version": "7.57.0", "status": "affected" }, { "version": "7.56.1", "status": "affected" }, { "version": "7.56.0", "status": "affected" }, { "version": "7.55.1", "status": "affected" }, { "version": "7.55.0", "status": "affected" }, { "version": "7.54.1", "status": "affected" }, { "version": "7.54.0", "status": "affected" }, { "version": "7.53.1", "status": "affected" }, { "version": "7.53.0", "status": "affected" }, { "version": "7.52.1", "status": "affected" }, { "version": "7.52.0", "status": "affected" }, { "version": "7.51.0", "status": "affected" }, { "version": "7.50.3", "status": "affected" }, { "version": "7.50.2", "status": "affected" }, { "version": "7.50.1", "status": "affected" }, { "version": "7.50.0", "status": "affected" }, { "version": "7.49.1", "status": "affected" }, { "version": "7.49.0", "status": "affected" }, { "version": "7.48.0", "status": "affected" }, { "version": "7.47.1", "status": "affected" }, { "version": "7.47.0", "status": "affected" }, { "version": "7.46.0", "status": "affected" }, { "version": "7.45.0", "status": "affected" }, { "version": "7.44.0", "status": "affected" }, { "version": "7.43.0", "status": "affected" }, { "version": "7.42.1", "status": "affected" }, { "version": "7.42.0", "status": "affected" }, { "version": "7.41.0", "status": "affected" }, { "version": "7.40.0", "status": "affected" }, { "version": "7.39.0", "status": "affected" }, { "version": "7.38.0", "status": "affected" }, { "version": "7.37.1", "status": "affected" }, { "version": "7.37.0", "status": "affected" }, { "version": "7.36.0", "status": "affected" }, { "version": "7.35.0", "status": "affected" }, { "version": "7.34.0", "status": "affected" }, { "version": "7.33.0", "status": "affected" }, { "version": "7.32.0", "status": "affected" }, { "version": "7.31.0", "status": "affected" }, { "version": "7.30.0", "status": "affected" }, { "version": "7.29.0", "status": "affected" }, { "version": "7.28.1", "status": "affected" }, { "version": "7.28.0", "status": "affected" }, { "version": "7.27.0", "status": "affected" }, { "version": "7.26.0", "status": "affected" }, { "version": "7.25.0", "status": "affected" }, { "version": "7.24.0", "status": "affected" }, { "version": "7.23.1", "status": "affected" }, { "version": "7.23.0", "status": "affected" }, { "version": "7.22.0", "status": "affected" }, { "version": "7.21.7", "status": "affected" }, { "version": "7.21.6", "status": "affected" }, { "version": "7.21.5", "status": "affected" }, { "version": "7.21.4", "status": "affected" }, { "version": "7.21.3", "status": "affected" }, { "version": "7.21.2", "status": "affected" }, { "version": "7.21.1", "status": "affected" }, { "version": "7.21.0", "status": "affected" }, { "version": "7.20.1", "status": "affected" }, { "version": "7.20.0", "status": "affected" }, { "version": "7.19.7", "status": "affected" }, { "version": "7.19.6", "status": "affected" }, { "version": "7.19.5", "status": "affected" }, { "version": "7.19.4", "status": "affected" }, { "version": "7.19.3", "status": "affected" }, { "version": "7.19.2", "status": "affected" }, { "version": "7.19.1", "status": "affected" }, { "version": "7.19.0", "status": "affected" }, { "version": "7.18.2", "status": "affected" }, { "version": "7.18.1", "status": "affected" }, { "version": "7.18.0", "status": "affected" }, { "version": "7.17.1", "status": "affected" }, { "version": "7.17.0", "status": "affected" }, { "version": "7.16.4", "status": "affected" }, { "version": "7.16.3", "status": "affected" }, { "version": "7.16.2", "status": "affected" }, { "version": "7.16.1", "status": "affected" }, { "version": "7.16.0", "status": "affected" }, { "version": "7.15.5", "status": "affected" }, { "version": "7.15.4", "status": "affected" }, { "version": "7.15.3", "status": "affected" }, { "version": "7.15.2", "status": "affected" }, { "version": "7.15.1", "status": "affected" }, { "version": "7.15.0", "status": "affected" }, { "version": "7.14.1", "status": "affected" }, { "version": "7.14.0", "status": "affected" }, { "version": "7.13.2", "status": "affected" }, { "version": "7.13.1", "status": "affected" }, { "version": "7.13.0", "status": "affected" }, { "version": "7.12.3", "status": "affected" }, { "version": "7.12.2", "status": "affected" }, { "version": "7.12.1", "status": "affected" }, { "version": "7.12.0", "status": "affected" }, { "version": "7.11.2", "status": "affected" }, { "version": "7.11.1", "status": "affected" }, { "version": "7.11.0", "status": "affected" }, { "version": "7.10.8", "status": "affected" }, { "version": "7.10.7", "status": "affected" }, { "version": "7.10.6", "status": "affected" }, { "version": "7.10.5", "status": "affected" }, { "version": "7.10.4", "status": "affected" }, { "version": "7.10.3", "status": "affected" }, { "version": "7.10.2", "status": "affected" }, { "version": "7.10.1", "status": "affected" }, { "version": "7.10", "status": "affected" }, { "version": "7.9.8", "status": "affected" }, { "version": "7.9.7", "status": "affected" }, { "version": "7.9.6", "status": "affected" }, { "version": "7.9.5", "status": "affected" }, { "version": "7.9.4", "status": "affected" }, { "version": "7.9.3", "status": "affected" }, { "version": "7.9.2", "status": "affected" }, { "version": "7.9.1", "status": "affected" }, { "version": "7.9", "status": "affected" }, { "version": "7.8.1", "status": "affected" }, { "version": "7.8", "status": "affected" }, { "version": "7.7.3", "status": "affected" }, { "version": "7.7.2", "status": "affected" }, { "version": "7.7.1", "status": "affected" }, { "version": "7.7", "status": "affected" } ], "defaultStatus": "unaffected" } ], "references": [ { "url": "https://curl.se/docs/CVE-2026-3784.json" }, { "url": "https://curl.se/docs/CVE-2026-3784.html" }, { "url": "https://hackerone.com/reports/3584903" } ], "x_osv": { "schema_version": "1.5.0", "id": "CURL-CVE-2026-3784", "aliases": [ "CVE-2026-3784" ], "summary": "wrong proxy connection reuse with credentials", "modified": "2026-09-07T10:34:51.00Z", "database_specific": { "package": "curl", "affects": "both", "URL": "https://curl.se/docs/CVE-2026-3784.json", "www": "https://curl.se/docs/CVE-2026-3784.html", "issue": "https://hackerone.com/reports/3584903", "CWE": { "id": "CWE-305", "desc": "Authentication Bypass by Primary Weakness" }, "last_affected": "8.18.0", "severity": "Low" }, "published": "2026-03-11T08:00:00.00Z", "affected": [ { "ranges": [ { "type": "SEMVER", "events": [ { "introduced": "7.7.0" }, { "fixed": "8.14.2" }, { "introduced": "8.15.0" }, { "fixed": "8.16.1" }, { "introduced": "8.17.0" }, { "fixed": "8.19.0" } ] }, { "type": "GIT", "repo": "https://github.com/curl/curl.git", "events": [ { "introduced": "a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4" }, { "fixed": "5f13a7645e565c5c1a06f3ef86e97afb856fb364" } ] } ], "versions": [ "8.18.0", "8.17.0", "8.16.0", "8.15.0", "8.14.1", "8.14.0", "8.13.0", "8.12.1", "8.12.0", "8.11.1", "8.11.0", "8.10.1", "8.10.0", "8.9.1", "8.9.0", "8.8.0", "8.7.1", "8.7.0", "8.6.0", "8.5.0", "8.4.0", "8.3.0", "8.2.1", "8.2.0", "8.1.2", "8.1.1", "8.1.0", "8.0.1", "8.0.0", "7.88.1", "7.88.0", "7.87.0", "7.86.0", "7.85.0", "7.84.0", "7.83.1", "7.83.0", "7.82.0", "7.81.0", "7.80.0", "7.79.1", "7.79.0", "7.78.0", "7.77.0", "7.76.1", "7.76.0", "7.75.0", "7.74.0", "7.73.0", "7.72.0", "7.71.1", "7.71.0", "7.70.0", "7.69.1", "7.69.0", "7.68.0", "7.67.0", "7.66.0", "7.65.3", "7.65.2", "7.65.1", "7.65.0", "7.64.1", "7.64.0", "7.63.0", "7.62.0", "7.61.1", "7.61.0", "7.60.0", "7.59.0", "7.58.0", "7.57.0", "7.56.1", "7.56.0", "7.55.1", "7.55.0", "7.54.1", "7.54.0", "7.53.1", "7.53.0", "7.52.1", "7.52.0", "7.51.0", "7.50.3", "7.50.2", "7.50.1", "7.50.0", "7.49.1", "7.49.0", "7.48.0", "7.47.1", "7.47.0", "7.46.0", "7.45.0", "7.44.0", "7.43.0", "7.42.1", "7.42.0", "7.41.0", "7.40.0", "7.39.0", "7.38.0", "7.37.1", "7.37.0", "7.36.0", "7.35.0", "7.34.0", "7.33.0", "7.32.0", "7.31.0", "7.30.0", "7.29.0", "7.28.1", "7.28.0", "7.27.0", "7.26.0", "7.25.0", "7.24.0", "7.23.1", "7.23.0", "7.22.0", "7.21.7", "7.21.6", "7.21.5", "7.21.4", "7.21.3", "7.21.2", "7.21.1", "7.21.0", "7.20.1", "7.20.0", "7.19.7", "7.19.6", "7.19.5", "7.19.4", "7.19.3", "7.19.2", "7.19.1", "7.19.0", "7.18.2", "7.18.1", "7.18.0", "7.17.1", "7.17.0", "7.16.4", "7.16.3", "7.16.2", "7.16.1", "7.16.0", "7.15.5", "7.15.4", "7.15.3", "7.15.2", "7.15.1", "7.15.0", "7.14.1", "7.14.0", "7.13.2", "7.13.1", "7.13.0", "7.12.3", "7.12.2", "7.12.1", "7.12.0", "7.11.2", "7.11.1", "7.11.0", "7.10.8", "7.10.7", "7.10.6", "7.10.5", "7.10.4", "7.10.3", "7.10.2", "7.10.1", "7.10", "7.9.8", "7.9.7", "7.9.6", "7.9.5", "7.9.4", "7.9.3", "7.9.2", "7.9.1", "7.9", "7.8.1", "7.8", "7.7.3", "7.7.2", "7.7.1", "7.7" ] } ], "credits": [ { "name": "Muhamad Arga Reksapati (HackerOne: nobcoder)", "type": "finder" }, { "name": "Stefan Eissing", "type": "remediation developer" } ], "details": "curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a\nserver, even if the new request uses different credentials for the HTTP proxy.\nThe proper behavior is to create or use a separate connection." }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Authentication Bypass by Primary Weakness", "cweId": "CWE-305", "type": "CWE" } ] } ], "credits": [ { "lang": "en", "value": "Muhamad Arga Reksapati (HackerOne: nobcoder)", "type": "finder" }, { "lang": "en", "value": "Stefan Eissing", "type": "remediation developer" } ], "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "http://www.openwall.com/lists/oss-security/2026/03/11/3" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-03-11T10:16:32.844Z" } }, { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-305", "lang": "en", "description": "CWE-305 Authentication Bypass by Primary Weakness" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-03-11T15:48:38.785522Z", "id": "CVE-2026-3784", "options": [ { "Exploitation": "none" }, { "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": "2026-03-11T15:48:41.725Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-06-02T13:00:43.860Z" }, "affected": [ { "vendor": "Siemens", "product": "RUGGEDCOM RST2428P", "versions": [ { "status": "affected", "version": "0", "lessThan": "V4.0", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html" } ] } ] } }