pgEdge RAG Server shared keyword index leaked results between concurrent unauthenticated requests

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.9 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

• CVE-2026-125325: 0.27% estimated exploitation activity in the next 30 days; percentile 19.60 (FIRST EPSS, 2026-11-14). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact Documents belonging to one caller could be returned to another. Where an application passes a customer or tenant identifier as a search filter, that scoping could be defeated by ordinary concurrent traffic. No injection and no malformed input are required — normal load is enough. The BM25 keyword index was a single per-pipeline object shared by every request. A request cleared it, refilled it from its own filtered corpus and then searched it, taking a separate lock for each step rather than holding the sequence as a unit. Concurrent requests therefore interleaved, and a search could run against a corpus that a different request's filter had populated. Who is affected: any deployment of pgEdge RAG Server at `1.0.0` or earlier, including all alpha and beta pre-releases, that serves concurrent queries — most acutely those relying on a search filter to separate tenants or customers. The query endpoint is unauthenticated in the affected versions…

Published by the source

12 Nov 2026, 19:42 UTC

Last modified by the source

12 Nov 2026, 19:45 UTC

Source last checked

13 Nov 2026, 06:30 UTC

1. Revision 2 · amended · 13 Nov 2026

   Amended from osv record GHSA-w437-9mwm-j6vq

2. Revision 1 · created · 12 Nov 2026

   Published from ghsa record GHSA-w437-9mwm-j6vq

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# Patch Next advisory brief: CVE-2026-125325

Advisory: pgEdge RAG Server shared keyword index leaked results between concurrent unauthenticated requests
IDs: CVE-2026-125325, GHSA-w437-9mwm-j6vq
Record: https://patchnext.com/advisories/cve-2026-125325 (revision 2, source checked 13 Nov 2026, 06:30 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/pgEdge/pgedge-rag-server 1.0.1-0.20260729020411-a09d4872356b. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/pgEdge/pgedge-rag-server: affected < 1.0.1-0.20260729020411-a09d4872356b; fixed in 1.0.1-0.20260729020411-a09d4872356b

## Suggested inspection (read-only)
- Go github.com/pgEdge/pgedge-rag-server: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/pgEdge/pgedge-rag-server.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-w437-9mwm-j6vq (GitHub-reviewed advisory GHSA-w437-9mwm-j6vq lists affected ranges: Go github.com/pgEdge/pgedge-rag-server >=0 <1.0.1-0.20260729020411-a09d4872356b)
- Verified: https://osv.dev/vulnerability/GHSA-w437-9mwm-j6vq (OSV record GHSA-w437-9mwm-j6vq lists affected ranges: Go github.com/pgEdge/pgedge-rag-server >=0 <1.0.1-0.20260729020411-a09d4872356b (fixed))

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