# CVE-2026-121558: AuditPilot before commit 4669c93 RAG Project-Scope Authorization Bypass via project_id

Status: published. Published: 2026-11-03. Updated: 2026-11-09.

AuditPilot before commit 4669c93 contains an authorization bypass vulnerability in _metadata_allowed in rag/agentic_rag.py that allows authenticated users to read other projects' knowledge by supplying project_id. Attackers with read:knowledge scoped to one project can set context.project_id via GET /api/knowledge/query or POST /api/research/answer to retrieve same-tenant project knowledge chunks.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/Ricky-7-Yan/intelligent-audit-system/commit/4669c93f3a7403a0e242bef14d771beef0b4356b

## Affected products and versions

- Ricky-7-Yan / intelligent-audit-system (Ricky-7-Yan/intelligent-audit-system): ≥ 0; < 4669c93f3a7403a0e242bef14d771beef0b4356b (affected, git). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 2.3 (low); CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 2.3 (low); CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.30% as of 2026-11-09; percentile 22.61%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-639

## Exploit evidence

- exploit: https://hackmd.io/@hieuPenguinnn/cve-2026-121558-auditpilot-rag-project-scope-idor-knowledge-query (ADP: CISA-ADP)

## References

- https://github.com/Ricky-7-Yan/intelligent-audit-system/issues/7 (CNA: VulnCheck; issue-tracking)

- https://github.com/Ricky-7-Yan/intelligent-audit-system (CNA: VulnCheck; product)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/commit/4669c93f3a7403a0e242bef14d771beef0b4356b (CNA: VulnCheck; patch)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/blob/e4f1bf1c92cb14dd18bf0e11f4688fd1e346c9b9/rag/agentic_rag.py#L342-L365 (CNA: VulnCheck; technical-description)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/blob/e4f1bf1c92cb14dd18bf0e11f4688fd1e346c9b9/web/main.py#L1197-L1206 (CNA: VulnCheck; technical-description)

- https://www.vulncheck.com/advisories/auditpilot-before-commit-4669c93-rag-project-scope-authorization-bypass-via-project-id (CNA: VulnCheck; third-party-advisory)

- https://hackmd.io/@hieuPenguinnn/cve-2026-121558-auditpilot-rag-project-scope-idor-knowledge-query (ADP: CISA-ADP; exploit)

- https://github.com/Ricky-7-Yan/intelligent-audit-system (disclosure@vulncheck.com)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/blob/e4f1bf1c92cb14dd18bf0e11f4688fd1e346c9b9/rag/agentic_rag.py#L342-L365 (disclosure@vulncheck.com)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/blob/e4f1bf1c92cb14dd18bf0e11f4688fd1e346c9b9/web/main.py#L1197-L1206 (disclosure@vulncheck.com)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/commit/4669c93f3a7403a0e242bef14d771beef0b4356b (disclosure@vulncheck.com)

- https://github.com/Ricky-7-Yan/intelligent-audit-system/issues/7 (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/auditpilot-before-commit-4669c93-rag-project-scope-authorization-bypass-via-project-id (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-121558; retrieved 2026-11-09; source updated 2026-11-09

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-121558; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-121558; retrieved 2026-11-09; source updated Not reported

Revision: 0669ae1e30e602bd4db508cd1fe411fb1dbaf7de95d7741bc995d7da26da2dcb

Canonical: https://y2.dev/cve/CVE-2026-121558

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.