# CVE-2026-108706: eladmin missing authorization in downloadS3Storage handler

Source: https://junglewise.ai/threats/cve-2026-108706-eladmin-through-commit-55fbf70-contains-a-missing-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-11. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-108706 · Severity: medium · CVSS 4.3 · Published 2026-10-11

eladmin is a web administration system that manages file storage in S3-compatible buckets. The downloadS3Storage endpoint fails to check whether a user has permission to access stored files, allowing any authenticated user to enumerate object IDs and retrieve URLs to all uploaded files. If the S3 bucket is publicly readable, attackers can then access the actual file contents without authorization.

## Quick answers

**Is CVE-2026-108706 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108706 being exploited in the wild.

**How severe is CVE-2026-108706?** Medium severity, with a CVSS score of 4.3, published 11 October 2026.

**Which products and versions are affected?** Eladmin through commit 55fbf70.

**Is there a fix for CVE-2026-108706?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-108706 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-108706?** Check whether you run Eladmin at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The GET /api/s3Storage/download/{id} endpoint lacks a @PreAuthorize annotation, whereas the list and delete endpoints for the same resource do enforce storage:list and storage:del permissions respectively. An authenticated attacker can call this endpoint with sequential IDs to enumerate all stored objects and retrieve their public URLs. If the S3 bucket has public read access, the attacker gains direct access to file contents. The vulnerability requires authentication but no specific storage permissions.

## Affected products

- eladmin through commit 55fbf70

## Timeline

- 2026-10-11: disclosed

## References

- [https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/eladmin/poc_s3Storage_download.py](https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/eladmin/poc_s3Storage_download.py)
- [https://github.com/elunez/eladmin/blob/55fbf705956949697dbd68bf9003776609d3d029/eladmin-tools/src/main/java/me/zhengjie/rest/S3StorageController.java](https://github.com/elunez/eladmin/blob/55fbf705956949697dbd68bf9003776609d3d029/eladmin-tools/src/main/java/me/zhengjie/rest/S3StorageController.java)