# CVE-2026-29924: XML external entity in n/a

> Attackers can exploit XML External Entity vulnerabilities in Grav CMS SVG uploads to read sensitive data or cause denial of service.

- **Severity:** High 7.6 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Mar 2026
- **Updated:** 30 Mar 2026
- **Also known as:** GHSA-fx6g-q2xm-rmch

## What is CVE-2026-29924?

CVE-2026-29924 is a high-severity vulnerability in Getgrav Grav, published on 30 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Grav CMS v1.7.x and before is vulnerable to XML External Entity (XXE) through the SVG file upload functionality in the admin panel and File Manager plugin.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2026-29924?

It affects 1 product.


Products: Getgrav Grav.

## How do I fix CVE-2026-29924?

No fix has been published for CVE-2026-29924 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-29924 being exploited?

There is no known exploitation of CVE-2026-29924 in the wild and no public exploit code.

## Other vulnerabilities in Getgrav Grav

- [CVE-2023-34251](https://insights.sbomify.com/CVE-2023-34251/): Grav Server Side Template Injection vulnerability (critical 10.0)
- [CVE-2025-46199](https://insights.sbomify.com/CVE-2025-46199/): Cross-site scripting in n/a (critical 9.8)
- [CVE-2021-47812](https://insights.sbomify.com/CVE-2021-47812/): GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2) (critical 9.3)
- [CVE-2025-66844](https://insights.sbomify.com/CVE-2025-66844/): Grav may be vulnerable to SSRF attack via Twig Templates (critical 9.1)
- [CVE-2022-2073](https://insights.sbomify.com/CVE-2022-2073/): Code Injection in getgrav/grav (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-29924 and fix it if it is affected.

What it is: CVE-2026-29924 is a high-severity vulnerability in Getgrav Grav, published on 30 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-29924 in the wild and no public exploit code.

Affected product: Getgrav Grav. 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-2026-29924/ (Markdown: https://insights.sbomify.com/CVE-2026-29924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-29924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-29924
- OSV: https://osv.dev/vulnerability/CVE-2026-29924

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-29924/
Summaries are generated and may contain mistakes; the official description above is the record.