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vuln-cve/data/2026/43xxx/CVE-2026-43979.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-43979",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-05-04T20:24:31.916Z",
"datePublished": "2026-05-28T17:59:19.443Z",
"dateUpdated": "2026-05-28T19:33:58.899Z"
},
"containers": {
"cna": {
"title": "Local Deep Research: HTML Injection via Unescaped User Input in PDF Export (`pdf_service.py:_markdown_to_html`)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"lang": "en",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-918",
"lang": "en",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/LearningCircuit/local-deep-research/security/advisories/GHSA-fj2m-qvh9-jq4q",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/LearningCircuit/local-deep-research/security/advisories/GHSA-fj2m-qvh9-jq4q"
},
{
"name": "https://github.com/LearningCircuit/local-deep-research/pull/3082",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/LearningCircuit/local-deep-research/pull/3082"
},
{
"name": "https://github.com/LearningCircuit/local-deep-research/pull/3613",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/LearningCircuit/local-deep-research/pull/3613"
}
],
"affected": [
{
"vendor": "LearningCircuit",
"product": "local-deep-research",
"versions": [
{
"version": "< 1.6.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-28T17:59:19.443Z"
},
"descriptions": [
{
"lang": "en",
"value": "Local Deep Research is an AI-powered research assistant for deep, iterative research. Prior to 1.6.0, PDFService._markdown_to_html() constructs an HTML document by interpolating user-controlled values — specifically title (sourced from research.title or research.query) and metadata key-value pairs — directly into an f-string without any HTML escaping. An authenticated attacker can craft a research query containing HTML special characters to inject arbitrary HTML tags into the document processed by WeasyPrint during PDF export. This injection can be chained to trigger a Server-Side Request Forgery (SSRF), bypassing the application's existing SSRF defenses in ssrf_validator.py. This vulnerability is fixed in 1.6.0."
}
],
"source": {
"advisory": "GHSA-fj2m-qvh9-jq4q",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/LearningCircuit/local-deep-research/security/advisories/GHSA-fj2m-qvh9-jq4q",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-28T19:33:32.262907Z",
"id": "CVE-2026-43979",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-05-28T19:33:58.899Z"
}
}
]
}
}