# CVE-2026-72784: Craft CMS 5.0.0-RC1 before 5.10.6 SSRF via GraphQL asset mutation

> Attackers with asset permissions can exploit incomplete SSRF validation to access internal network resources via GraphQL asset mutations.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Aug 2026
- **Updated:** 11 Aug 2026
- **Also known as:** GHSA-2mx8-9ww7-p27x, GHSA-hvvw-h49x-4xmw

## What is CVE-2026-72784?

CVE-2026-72784 is a medium-severity server-side request forgery vulnerability in craftcms cms, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 contain a server-side request forgery vulnerability in the GraphQL save<Volume>Asset mutation, which fetches an attacker-supplied URL server-side. The anti-SSRF validation is incomplete: validateIp() does not cover CGNAT (100.64.0.0/10) or NAT64 (64:ff9b::/96) ranges, and the only IP check runs after the request has already been issued. An attacker holding a GraphQL token scoped only to asset-creation permissions can disclose internal HTTP content from CGNAT/NAT64 targets, force outbound GET requests to internal hosts (including RFC1918, loopback, and metadata endpoints), and enumerate internal services.

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

## Which versions are affected by CVE-2026-72784?


## How do I fix CVE-2026-72784?

No fix has been published for CVE-2026-72784 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-72784 being exploited?

There is no known exploitation of CVE-2026-72784 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-72784 and fix it if it is affected.

What it is: CVE-2026-72784 is a medium-severity server-side request forgery vulnerability in craftcms cms, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-72784 in the wild and no public exploit code.

Affected product: craftcms cms. 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-2026-72784/ (Markdown: https://insights.sbomify.com/CVE-2026-72784/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-72784
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72784
- OSV: https://osv.dev/vulnerability/CVE-2026-72784

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-72784/
Summaries are generated and may contain mistakes; the official description above is the record.