CVE-2026-4742 (GCVE-0-2026-4742)
Vulnerability from cvelistv5 – Published: 2026-03-24 03:24 – Updated: 2026-03-24 14:33
VLAI
EPSS
VEX
Title
HTTP Request Smuggling in visualfc/liteide
Summary
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in visualfc liteide (liteidex/src/3rdparty/qjsonrpc/src/http-parser modules). This vulnerability is associated with program files http_parser.C.
This issue affects liteide: before x38.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 14:33 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
GovTech CSG
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/visualfc/liteide/pull/1325 | patch |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4742",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-24T14:33:30.809217Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T14:33:37.688Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://github.com/visualfc/liteide",
"defaultStatus": "affected",
"modules": [
"liteidex/src/3rdparty/qjsonrpc/src/http-parser"
],
"product": "liteide",
"programFiles": [
"http_parser.c"
],
"vendor": "visualfc",
"versions": [
{
"lessThan": "x38.4",
"status": "affected",
"version": "0",
"versionType": "git"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "TITAN Team (titancaproject@gmail.com)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in visualfc liteide (liteidex/src/3rdparty/qjsonrpc/src/http-parser modules).\u003cp\u003e This vulnerability is associated with program files http_parser.C.\u003c/p\u003e\u003cp\u003eThis issue affects liteide: before x38.4.\u003c/p\u003e"
}
],
"value": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in visualfc liteide (liteidex/src/3rdparty/qjsonrpc/src/http-parser modules). This vulnerability is associated with program files http_parser.C.\n\nThis issue affects liteide: before x38.4."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NO",
"Recovery": "USER",
"Safety": "NEGLIGIBLE",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 2.9,
"baseSeverity": "LOW",
"exploitMaturity": "PROOF_OF_CONCEPT",
"privilegesRequired": "NONE",
"providerUrgency": "GREEN",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "DIFFUSE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N/E:P/S:N/AU:N/R:U/V:D/RE:L/U:Green",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "LOW"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-444",
"description": "CWE-444 Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T03:24:06.460Z",
"orgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
"shortName": "GovTech CSG"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/visualfc/liteide/pull/1325"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "HTTP Request Smuggling in visualfc/liteide",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
"assignerShortName": "GovTech CSG",
"cveId": "CVE-2026-4742",
"datePublished": "2026-03-24T03:24:06.460Z",
"dateReserved": "2026-03-24T03:23:33.566Z",
"dateUpdated": "2026-03-24T14:33:37.688Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-4742",
"date": "2026-10-17",
"epss": "0.00331",
"percentile": "0.24675"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"collectionURL": "https://github.com/visualfc/liteide",
"defaultStatus": "affected",
"modules": [
"liteidex/src/3rdparty/qjsonrpc/src/http-parser"
],
"product": "liteide",
"programFiles": [
"http_parser.c"
],
"vendor": "visualfc",
"versions": [
{
"lessThan": "x38.4",
"status": "affected",
"version": "0",
"versionType": "git"
}
]
}
],
"source": "cve_disclosure@tech.gov.sg"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in visualfc liteide (liteidex/src/3rdparty/qjsonrpc/src/http-parser modules). This vulnerability is associated with program files http_parser.C.\n\nThis issue affects liteide: before x38.4."
},
{
"lang": "es",
"value": "Vulnerabilidad de Interpretaci\u00f3n Inconsistente de Solicitudes HTTP (\u0027Contrabando de Solicitudes/Respuestas HTTP\u0027) en visualfc liteide (m\u00f3dulos liteidex/src/3rdparty/qjsonrpc/src/http-parser). Esta vulnerabilidad est\u00e1 asociada con los archivos de programa http_parser.C.\n\nEste problema afecta a liteide: versiones anteriores a x38.4."
}
],
"id": "CVE-2026-4742",
"lastModified": "2026-06-17T10:57:09.463",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NO",
"Recovery": "USER",
"Safety": "NEGLIGIBLE",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 2.9,
"baseSeverity": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "PROOF_OF_CONCEPT",
"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": "GREEN",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "DIFFUSE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N/E:P/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:N/AU:N/R:U/V:D/RE:L/U:Green",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "LOW"
},
"source": "cve_disclosure@tech.gov.sg",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-4742",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-24T14:33:30.809217Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-03-24T04:17:30.380",
"references": [
{
"source": "cve_disclosure@tech.gov.sg",
"url": "https://github.com/visualfc/liteide/pull/1325"
}
],
"sourceIdentifier": "cve_disclosure@tech.gov.sg",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-444"
}
],
"source": "cve_disclosure@tech.gov.sg",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T07:31:36+00:00",
"cve": "CVE-2026-4742",
"id": "CVE-2026-4742",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "HTTP Request Smuggling in visualfc/liteide",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4742.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4742",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-24T14:33:30.809217Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T14:33:34.761Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://github.com/visualfc/liteide",
"defaultStatus": "affected",
"modules": [
"liteidex/src/3rdparty/qjsonrpc/src/http-parser"
],
"product": "liteide",
"programFiles": [
"http_parser.c"
],
"vendor": "visualfc",
"versions": [
{
"lessThan": "x38.4",
"status": "affected",
"version": "0",
"versionType": "git"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "TITAN Team (titancaproject@gmail.com)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in visualfc liteide (liteidex/src/3rdparty/qjsonrpc/src/http-parser modules).\u003cp\u003e This vulnerability is associated with program files http_parser.C.\u003c/p\u003e\u003cp\u003eThis issue affects liteide: before x38.4.\u003c/p\u003e"
}
],
"value": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in visualfc liteide (liteidex/src/3rdparty/qjsonrpc/src/http-parser modules). This vulnerability is associated with program files http_parser.C.\n\nThis issue affects liteide: before x38.4."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NO",
"Recovery": "USER",
"Safety": "NEGLIGIBLE",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 2.9,
"baseSeverity": "LOW",
"exploitMaturity": "PROOF_OF_CONCEPT",
"privilegesRequired": "NONE",
"providerUrgency": "GREEN",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "DIFFUSE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N/E:P/S:N/AU:N/R:U/V:D/RE:L/U:Green",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "LOW"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-444",
"description": "CWE-444 Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T03:24:06.460Z",
"orgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
"shortName": "GovTech CSG"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/visualfc/liteide/pull/1325"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "HTTP Request Smuggling in visualfc/liteide",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
"assignerShortName": "GovTech CSG",
"cveId": "CVE-2026-4742",
"datePublished": "2026-03-24T03:24:06.460Z",
"dateReserved": "2026-03-24T03:23:33.566Z",
"dateUpdated": "2026-03-24T14:33:37.688Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.