ArcadeDB has cross-database IDOR: /ts/*, /batch/*, Prometheus and Grafana handlers bypass authorization

Exploitation

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

CVSS 4.0

7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N · score source

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

About 14 HTTP handlers resolve the {database} path param and call getDatabase(...) WITHOUT user.canAccessToDatabase(...) and without setting the engine principal, because they extend AbstractServerHttpHandler directly instead of DatabaseAbstractHandler (which holds the only per-database gate at DatabaseAbstractHandler.java:69,88-90). Affected: PostBatchHandler:129, PostTimeSeriesWriteHandler:115, PostPrometheusWriteHandler:83, PostTimeSeriesQueryHandler:69, GetTimeSeriesLatestHandler:58, PostGrafanaQueryHandler:69, GetGrafanaHealthHandler:49, GetGrafanaMetadataHandler:52, GetPromQLQueryHandler:63, GetPromQLQueryRangeHandler:71, GetPromQLLabelsHandler:56, GetPromQLLabelValuesHandler:62, GetPromQLSeriesHandler:72, PostPrometheusReadHandler:85. The engine fallback is also void: LocalDatabase.checkPermissionsOnDatabase:711 early-returns when getCurrentUser()==null. Exploit: a user authorized only for DB 'a' calls POST /api/v1/batch/b, POST /api/v1/ts/b/write, GET…

Published by the source

16 Jul 2026, 20:20 UTC

Last modified by the source

16 Jul 2026, 20:20 UTC

Source last checked

26 Oct 2026, 16:54 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-x8mg-6r4p-87pf

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# Patch Next advisory brief: GHSA-x8mg-6r4p-87pf

Advisory: ArcadeDB has cross-database IDOR: /ts/*, /batch/*, Prometheus and Grafana handlers bypass authorization
IDs: GHSA-x8mg-6r4p-87pf
Record: https://patchnext.com/advisories/ghsa-x8mg-6r4p-87pf (revision 1, source checked 26 Oct 2026, 16:54 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: com.arcadedb:arcadedb-server 26.7.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven com.arcadedb:arcadedb-server: affected < 26.7.2; fixed in 26.7.2

## Suggested inspection (read-only)
- Maven com.arcadedb:arcadedb-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 com.arcadedb:arcadedb-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-x8mg-6r4p-87pf (GitHub-reviewed advisory GHSA-x8mg-6r4p-87pf lists affected ranges: Maven com.arcadedb:arcadedb-server >=0 <26.7.2)

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