{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73051", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-10T19:10:18.100Z", "datePublished": "2026-08-14T11:35:45.780Z", "dateUpdated": "2026-08-14T13:58:57.133Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-14T11:35:45.780Z"}, "datePublic": "2026-04-18T00:00:00.000Z", "title": "actix-http before 3.12.1 HTTP Request Smuggling via CL.TE", "descriptions": [{"lang": "en", "value": "actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backend requests and smuggle malicious HTTP requests to the Actix service."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "cweId": "CWE-444", "type": "CWE"}]}], "affected": [{"vendor": "actix", "product": "actix-web", "defaultStatus": "unaffected", "packageURL": "pkg:cargo/actix-http", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "3.12.0"}, {"version": "3.12.0", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:actix:actix-web:*:*:*:*:*:rust:*:*", "versionEndExcluding": "3.12.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/actix/actix-web/security/advisories/GHSA-xhj4-vrgc-hr34", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-xhj4-vrgc-hr34)"}, {"name": "VulnCheck Advisory: actix-http before 3.12.1 HTTP Request Smuggling via CL.TE", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/actix-http-before-http-request-smuggling-via-cl-te"}], "credits": [{"lang": "en", "value": "mufeedvh", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-14T13:58:45.453232Z", "id": "CVE-2026-73051", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-08-14T13:58:57.133Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-73051", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-14T13:58:45.453232Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-14T13:58:51.334Z"}}], "cna": {"title": "actix-http before 3.12.1 HTTP Request Smuggling via CL.TE", "credits": [{"lang": "en", "type": "reporter", "value": "mufeedvh"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE"}}], "affected": [{"vendor": "actix", "product": "actix-web", "versions": [{"status": "affected", "version": "0", "lessThan": "3.12.0", "versionType": "semver"}, {"status": "unaffected", "version": "3.12.0", "versionType": "semver"}], "packageURL": "pkg:cargo/actix-http", "defaultStatus": "unaffected"}], "datePublic": "2026-04-18T00:00:00.000Z", "references": [{"url": "https://github.com/actix/actix-web/security/advisories/GHSA-xhj4-vrgc-hr34", "name": "GitHub Security Advisory (GHSA-xhj4-vrgc-hr34)", "tags": ["vendor-advisory"]}, {"url": "https://www.vulncheck.com/advisories/actix-http-before-http-request-smuggling-via-cl-te", "name": "VulnCheck Advisory: actix-http before 3.12.1 HTTP Request Smuggling via CL.TE", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backend requests and smuggle malicious HTTP requests to the Actix service."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:actix:actix-web:*:*:*:*:*:rust:*:*", "vulnerable": true, "versionEndExcluding": "3.12.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-14T11:35:45.780Z"}}}, "cveMetadata": {"cveId": "CVE-2026-73051", "state": "PUBLISHED", "dateUpdated": "2026-08-14T13:58:57.133Z", "dateReserved": "2026-08-10T19:10:18.100Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-08-14T11:35:45.780Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:cargo/actix-http", "product": "actix-web", "vendor": "actix", "versions": [{"lessThan": "3.12.0", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "3.12.0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backend requests and smuggle malicious HTTP requests to the Actix service."}], "id": "CVE-2026-73051", "lastModified": "2026-08-14T14:16:51.887", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73051", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-14T13:58:45.453232Z", "version": "2.0.3"}}]}, "published": "2026-08-14T12:16:47.820", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/actix/actix-web/security/advisories/GHSA-xhj4-vrgc-hr34"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/actix-http-before-http-request-smuggling-via-cl-te"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.12.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "3.12.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "actix-web", "source": "cna", "vendor": "actix"}, "product": "actix-web", "vendor": "actix"}], "created": "2026-08-14T13:15:17.535943+00:00", "updated": "2026-08-14T14:15:13.420551+00:00", "vendors": ["actix", "actix$PRODUCT$actix-web"]}