# CVE-2025-53018: Lychee has Server-Side Request Forgery (SSRF) in Photo::fromUrl API via unvalidated remote image URLs

> Attackers can exploit unvalidated URL inputs in the Photo::fromUrl API to access internal network resources and cloud metadata.

- **Severity:** Low 3.0 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 27 Jun 2025
- **Updated:** 27 Jun 2025
- **Also known as:** GHSA-cpgw-wgf3-xc6v

## What is CVE-2025-53018?

CVE-2025-53018 is a low-severity server-side request forgery vulnerability in LycheeOrg Lychee, published on 27 Jun 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Lychee is a free, open-source photo-management tool. Prior to version 6.6.13, a critical Server-Side Request Forgery (SSRF) vulnerability exists in the `/api/v2/Photo::fromUrl` endpoint. This flaw lets an attacker instruct the application’s backend to make HTTP requests to any URL they choose. Consequently, internal network resources—such as localhost services or cloud-provider metadata endpoints—become reachable. The endpoint takes a URL from the user and calls it server-side via fopen() without any safeguards. There is no IP address validation, nor are there any allow-list, timeout, or size restrictions. Because of this, attackers can point the application at internal targets. Using this flaw, an attacker can perform internal port scans or retrieve sensitive cloud metadata. Version 6.6.13 contains a patch for the issue.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2025-53018?


## How do I fix CVE-2025-53018?

No fix has been published for CVE-2025-53018 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-53018 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53018 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-53018 and fix it if it is affected.

What it is: CVE-2025-53018 is a low-severity server-side request forgery vulnerability in LycheeOrg Lychee, published on 27 Jun 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53018 exists.

Affected product: LycheeOrg Lychee. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-53018/ (Markdown: https://insights.sbomify.com/CVE-2025-53018/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-53018
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-53018
- OSV: https://osv.dev/vulnerability/CVE-2025-53018

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-53018/
Summaries are generated and may contain mistakes; the official description above is the record.