CVE-2026-119130

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-119130", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-29T14:26:15.522Z", "datePublished": "2026-10-29T15:58:12.004Z", "dateUpdated": "2026-10-29T20:14:54.045Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-29T15:58:12.004Z"}, "datePublic": "2026-10-14T00:00:00.000Z", "title": "Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 HTTP Request Target Smuggling", "descriptions": [{"lang": "en", "value": "Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 does not verify that set-path-with-query values in wasmtime-wasi-http are paths, so absolute-form URLs are written verbatim as the HTTP/1.1 request target while the connection uses the allowed authority. A malicious guest can supply an absolute URL that a forward proxy or gateway at that authority honors, reaching hosts disallowed by embedder filtering policies."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Input Validation", "cweId": "CWE-20", "type": "CWE"}]}], "affected": [{"vendor": "bytecodealliance", "product": "wasmtime", "defaultStatus": "unaffected", "packageURL": "pkg:cargo/wasmtime-wasi-http", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "36.0.18"}, {"version": "36.0.18", "status": "unaffected", "versionType": "semver"}, {"version": "37.0.0", "status": "affected", "versionType": "semver", "lessThan": "48.0.6"}, {"version": "48.0.6", "status": "unaffected", "versionType": "semver"}, {"version": "49.0.0", "status": "affected", "versionType": "semver", "lessThan": "49.0.3"}, {"version": "49.0.3", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*", "versionEndExcluding": "36.0.18"}, {"vulnerable": true, "criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*", "versionStartIncluding": "37.0.0", "versionEndExcluding": "48.0.6"}, {"vulnerable": true, "criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*", "versionStartIncluding": "49.0.0", "versionEndExcluding": "49.0.3"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 2.1, "baseSeverity": "LOW"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 2.6, "baseSeverity": "LOW"}}], "references": [{"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-5qpp-g3j2-8frx", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-5qpp-g3j2-8frx)"}, {"name": "VulnCheck Advisory: Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 HTTP Request Target Smuggling", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0.0-before-49.0.3-http-request-target-smuggling"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-29T20:14:38.866656Z", "id": "CVE-2026-119130", "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": "2026-10-29T20:14:54.045Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-119130", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-29T20:14:38.866656Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T20:14:45.609Z"}}], "cna": {"title": "Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 HTTP Request Target Smuggling", "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 2.1, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "userInteraction": "PASSIVE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW"}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.6, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "bytecodealliance", "product": "wasmtime", "versions": [{"status": "affected", "version": "0", "lessThan": "36.0.18", "versionType": "semver"}, {"status": "unaffected", "version": "36.0.18", "versionType": "semver"}, {"status": "affected", "version": "37.0.0", "lessThan": "48.0.6", "versionType": "semver"}, {"status": "unaffected", "version": "48.0.6", "versionType": "semver"}, {"status": "affected", "version": "49.0.0", "lessThan": "49.0.3", "versionType": "semver"}, {"status": "unaffected", "version": "49.0.3", "versionType": "semver"}], "packageURL": "pkg:cargo/wasmtime-wasi-http", "defaultStatus": "unaffected"}], "datePublic": "2026-10-14T00:00:00.000Z", "references": [{"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-5qpp-g3j2-8frx", "name": "GitHub Security Advisory (GHSA-5qpp-g3j2-8frx)", "tags": ["vendor-advisory"]}, {"url": "https://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0.0-before-49.0.3-http-request-target-smuggling", "name": "VulnCheck Advisory: Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 HTTP Request Target Smuggling", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 does not verify that set-path-with-query values in wasmtime-wasi-http are paths, so absolute-form URLs are written verbatim as the HTTP/1.1 request target while the connection uses the allowed authority. A malicious guest can supply an absolute URL that a forward proxy or gateway at that authority honors, reaching hosts disallowed by embedder filtering policies."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "Improper Input Validation"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "36.0.18"}, {"criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "48.0.6", "versionStartIncluding": "37.0.0"}, {"criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "49.0.3", "versionStartIncluding": "49.0.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-29T15:58:12.004Z"}}}, "cveMetadata": {"cveId": "CVE-2026-119130", "state": "PUBLISHED", "dateUpdated": "2026-10-29T20:14:54.045Z", "dateReserved": "2026-10-29T14:26:15.522Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-10-29T15:58:12.004Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:cargo/wasmtime-wasi-http", "product": "wasmtime", "vendor": "bytecodealliance", "versions": [{"lessThan": "36.0.18", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "36.0.18", "versionType": "semver"}, {"lessThan": "48.0.6", "status": "affected", "version": "37.0.0", "versionType": "semver"}, {"status": "unaffected", "version": "48.0.6", "versionType": "semver"}, {"lessThan": "49.0.3", "status": "affected", "version": "49.0.0", "versionType": "semver"}, {"status": "unaffected", "version": "49.0.3", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 does not verify that set-path-with-query values in wasmtime-wasi-http are paths, so absolute-form URLs are written verbatim as the HTTP/1.1 request target while the connection uses the allowed authority. A malicious guest can supply an absolute URL that a forward proxy or gateway at that authority honors, reaching hosts disallowed by embedder filtering policies."}], "id": "CVE-2026-119130", "lastModified": "2026-10-29T21:17:17.830", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 2.6, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:N/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": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-119130", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-29T20:14:38.866656Z", "version": "2.0.3"}}]}, "published": "2026-10-29T16:18:05.947", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-5qpp-g3j2-8frx"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0.0-before-49.0.3-http-request-target-smuggling"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,36.0.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "36.0.18"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[37.0.0,48.0.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "48.0.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[49.0.0,49.0.3)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "49.0.3"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "wasmtime", "source": "cna", "vendor": "bytecodealliance"}, "product": "wasmtime", "vendor": "bytecodealliance"}], "created": "2026-10-29T17:45:17.596461+00:00", "updated": "2026-10-29T19:45:11.527152+00:00", "vendors": ["bytecodealliance", "bytecodealliance$PRODUCT$wasmtime"]}