# CVE-2026-125327: pgEdge RAG Server unbounded corpus read allows resource exhaustion from unauthenticated requests

Status: published. Published: 2026-11-10. Updated: 2026-11-12.

pgEdge RAG Server is an API server for retrieval-augmented generation over PostgreSQL content using pgvector. Prior to 2.0.0, the unauthenticated query endpoint uses FetchDocuments in internal/database/search.go to read the entire filtered corpus without a LIMIT and rebuild an in-memory BM25 index on every request. Because HybridEnabled is set by default in internal/config/loader.go and the endpoint has no rate limit, inexpensive remote queries can impose database and CPU work proportional to corpus size and exhaust service resources. This issue is fixed in version 2.0.0.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- pgEdge / pgedge-rag-server: < 2.0.0 (affected). Source: CNA: GitHub_M

## Severity and prioritization

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

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: 0.45% as of 2026-11-12; percentile 39.28%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-405, CWE-770

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/pgEdge/pgedge-rag-server/security/advisories/GHSA-5qg5-rgp6-j5m5 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/pgEdge/pgedge-rag-server/pull/44 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/pgEdge/pgedge-rag-server/commit/a09d4872356b510c81f11591845445c33ff45a84 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/pgEdge/pgedge-rag-server/releases/tag/v2.0.0 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/pgEdge/pgedge-rag-server/commit/a09d4872356b510c81f11591845445c33ff45a84 (security-advisories@github.com)

- https://github.com/pgEdge/pgedge-rag-server/pull/44 (security-advisories@github.com)

- https://github.com/pgEdge/pgedge-rag-server/releases/tag/v2.0.0 (security-advisories@github.com)

- https://github.com/pgEdge/pgedge-rag-server/security/advisories/GHSA-5qg5-rgp6-j5m5 (security-advisories@github.com)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-125327; retrieved 2026-11-12; source updated 2026-11-12

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-125327; retrieved 2026-11-11; source updated 2026-11-10

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-125327; retrieved 2026-11-12; source updated Not reported

Revision: 94e1174c2956072ed57c1f07fa8f0a84315bdd4484b170e613db38e04063090e

Canonical: https://y2.dev/cve/CVE-2026-125327

## Agent and API access

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- 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.