{"affected":[{"product":"code-graph-rag","source":"CNA: GitHub_M","vendor":"vitali87","versions":[{"status":"affected","version":"< 0.0.589"}]}],"cveId":"CVE-2026-87008","cwes":["CWE-22","CWE-59"],"description":"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.","epss":null,"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/vitali87/code-graph-rag/security/advisories/GHSA-85gg-2gfq-q95m"}],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1793912632501,"publishedAt":1793909603276,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vitali87/code-graph-rag/security/advisories/GHSA-85gg-2gfq-q95m"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/vitali87/code-graph-rag/commit/2648c95aa550ce2d9361a8e75ed669d5f4b451b8"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/vitali87/code-graph-rag/releases/tag/v0.0.589"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/vitali87/code-graph-rag/security/advisories/GHSA-85gg-2gfq-q95m"}],"remediation":[],"revision":"3d5851edab8be050ef8b05bfc24d0c2f632c890f58a5cdace7e103bf55f895ed","sources":[{"modifiedAt":1793912632501,"name":"CNA: GitHub_M","retrievedAt":1793913875717,"url":"https://www.cve.org/CVERecord?id=CVE-2026-87008"}],"ssvc":{"assessedAt":1793912614665,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Code Graph RAG structural tools follow out-of-root symlinks","updatedAt":1793913875717}