# CVE-2026-15792: Possible panic when incorrect parameters sent from frontend

> A malicious BuildKit client can crash the daemon by sending crafted requests, causing a denial of service for container build operations.

- **Severity:** Medium 6.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 21 Jul 2026
- **Updated:** 21 Jul 2026
- **Also known as:** GHSA-qx3x-mv6r-52p6, UBUNTU-CVE-2026-15792

## What is CVE-2026-15792?

CVE-2026-15792 is a medium-severity denial of service vulnerability in moby BuildKit, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A malicious BuildKit client or frontend could craft a request that could lead to BuildKit daemon crashing with a panic.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-15792?

It affects 1 product.


Products: Mobyproject Buildkit.

## How do I fix CVE-2026-15792?

Apply the vendor's patch.

## Is CVE-2026-15792 being exploited?

There is no known exploitation of CVE-2026-15792 in the wild and no public exploit code.

## Other vulnerabilities in moby BuildKit

- [CVE-2024-23652](https://insights.sbomify.com/CVE-2024-23652/): BuildKit possible host system access from mount stub cleaner (critical 10.0)
- [CVE-2024-23653](https://insights.sbomify.com/CVE-2024-23653/): BuildKit interactive containers API does not validate entitlements check (critical 9.8)
- [CVE-2024-23651](https://insights.sbomify.com/CVE-2024-23651/): BuildKit possible race condition with accessing subpaths from cache mounts (high 8.7)
- [CVE-2026-33747](https://insights.sbomify.com/CVE-2026-33747/): BuildKit vulnerable to malicious frontend causing file escape outside of storage root (high 8.4)
- [CVE-2026-33748](https://insights.sbomify.com/CVE-2026-33748/): BuildKit Git URL subdir component can cause access to restricted files (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15792 and fix it if it is affected.

What it is: CVE-2026-15792 is a medium-severity denial of service vulnerability in moby BuildKit, published on 21 Jul 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-2026-15792 in the wild and no public exploit code.

Affected product: moby BuildKit. 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-2026-15792/ (Markdown: https://insights.sbomify.com/CVE-2026-15792/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15792
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15792
- OSV: https://osv.dev/vulnerability/CVE-2026-15792

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-15792/
Summaries are generated and may contain mistakes; the official description above is the record.