# CVE-2026-54544: Fireshare has unauthenticated SSRF via missing login_required on webhook test endpoints

> Unauthenticated attackers can trigger server-side requests to internal networks via missing authentication on webhook test endpoints in Fireshare.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Sep 2026
- **Updated:** 16 Sep 2026
- **Also known as:** GHSA-w7j7-gv7f-gj92

## What is CVE-2026-54544?

CVE-2026-54544 is a high-severity server-side request forgery vulnerability in ShaneIsrael fireshare, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Fireshare facilitates self-hosted media and link sharing. Prior to version 1.6.16, two API endpoints that trigger outbound HTTP requests are missing the @login_required decorator. An unauthenticated attacker can call POST /api/test-discord-webhook or POST /api/test-webhook and cause the Fireshare server to issue an arbitrary HTTP POST to any URL the attacker supplies, including internal network addresses and cloud metadata services. No credentials, session cookies, or prior access are required. Version 1.6.16 contains a patch.

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

## Which versions are affected by CVE-2026-54544?


## How do I fix CVE-2026-54544?

No fix has been published for CVE-2026-54544 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-54544 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54544 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54544 and fix it if it is affected.

What it is: CVE-2026-54544 is a high-severity server-side request forgery vulnerability in ShaneIsrael fireshare, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54544 exists.

Affected product: ShaneIsrael fireshare. 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-2026-54544/ (Markdown: https://insights.sbomify.com/CVE-2026-54544/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54544
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54544
- OSV: https://osv.dev/vulnerability/CVE-2026-54544

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-54544/
Summaries are generated and may contain mistakes; the official description above is the record.