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vuln-cve/data/2026/87xxx/CVE-2026-87008.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-87008",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-09-08T16:44:23.782Z",
"datePublished": "2026-11-05T20:13:23.276Z",
"dateUpdated": "2026-11-05T21:03:52.501Z"
},
"containers": {
"cna": {
"title": "Code Graph RAG structural tools follow out-of-root symlinks",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"lang": "en",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-59",
"lang": "en",
"description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/vitali87/code-graph-rag/security/advisories/GHSA-85gg-2gfq-q95m",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vitali87/code-graph-rag/security/advisories/GHSA-85gg-2gfq-q95m"
},
{
"name": "https://github.com/vitali87/code-graph-rag/commit/2648c95aa550ce2d9361a8e75ed669d5f4b451b8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vitali87/code-graph-rag/commit/2648c95aa550ce2d9361a8e75ed669d5f4b451b8"
},
{
"name": "https://github.com/vitali87/code-graph-rag/releases/tag/v0.0.589",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vitali87/code-graph-rag/releases/tag/v0.0.589"
}
],
"affected": [
{
"vendor": "vitali87",
"product": "code-graph-rag",
"versions": [
{
"version": "< 0.0.589",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-11-05T20:13:23.276Z"
},
"descriptions": [
{
"lang": "en",
"value": "Code Graph RAG is an AI-powered knowledge graph and retrieval system for querying, understanding, and editing multi-language codebases. Prior to 0.0.589, AstGrepService in codebase_rag/tools/ast_grep_service.py enumerates files beneath project_root and relies on should_skip_path in codebase_rag/utils/path_utils.py to classify them, but the containment check operates on unresolved lexical paths. A symbolic link planted inside an analyzed repository can therefore reference a file outside the configured root while still appearing in scope. The structural_search tool follows the link and discloses readable content without an approval gate, while structural_replace with dry_run=False follows it and overwrites writable content; the MCP path invokes structural replacement without the agent-loop approval control. An attacker who causes a victim to analyze a repository containing such a link can read credentials, keys, environment files, or sibling source and can modify files accessible to the code-graph-rag process. This issue is fixed in version 0.0.589."
}
],
"source": {
"advisory": "GHSA-85gg-2gfq-q95m",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/vitali87/code-graph-rag/security/advisories/GHSA-85gg-2gfq-q95m",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-05T21:03:34.665618Z",
"id": "CVE-2026-87008",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-05T21:03:52.501Z"
}
}
]
}
}