# CVE-2026-82527: R2R 3.6.6 SQL Injection via Retrieval Search Filter Key

Status: published. Published: 2026-09-03. Updated: 2026-11-08.

R2R through 3.6.6 contains a SQL injection vulnerability that allows unauthenticated attackers to inject SQL predicates into the chunks search query by manipulating the filter key parameter in the retrieval search endpoint. Attackers can exploit the direct interpolation of filter keys into the SQL WHERE clause without parameterization or escaping to perform time-based and boolean-based data exfiltration from the application database.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- SciPhi-AI / R2R (SciPhi-AI/R2R): ≥ 0; ≤ 3.6.6 (affected, semver); ≥ 0; ≤ 9c5a94d151f90876bd7eb860f300a8fd662dc481 (affected, git). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.46% as of 2026-11-08; percentile 40.35%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-89

## Exploit evidence

- exploit: https://github.com/SciPhi-AI/R2R/issues/2308 (CNA: VulnCheck)

## References

- https://github.com/SciPhi-AI/R2R/issues/2308 (CNA: VulnCheck; technical-description, exploit, issue-tracking)

- https://www.vulncheck.com/advisories/r2r-sql-injection-via-retrieval-search-filter-key (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-82527; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-82527; retrieved 2026-11-08; source updated Not reported

Revision: 35532d00c503d0a7b529b6982a260a8991ab7f6bafd20daba57ee91326a828ff

Canonical: https://y2.dev/cve/CVE-2026-82527

## 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.