# CVE-2026-57952: Mythic < 3.4.0.60 - Unauthorized C2 Profile Configuration Access via Unverified Payload UUID

> Attackers can access sensitive C2 profile configurations and encryption keys from other operations by exploiting missing payload ownership verification in REST endpoints.

- **Severity:** Medium 6.0 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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:** No
- **Published:** 29 Jun 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-vq63-9qrm-qv35

## What is CVE-2026-57952?

CVE-2026-57952 is a medium-severity missing authorization vulnerability in its-a-feature Mythic, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Mythic before 3.4.0.60 contains an authorization bypass vulnerability in four REST endpoints (c2profile_config_check_webhook, c2profile_redirect_rules_webhook, c2profile_get_ioc_webhook, c2profile_sample_message_webhook) that fail to verify payload ownership. An operator in one operation can invoke these endpoints with a known payload UUID from another operation to access that operation's C2 profile configuration including encryption keys and callback parameters.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-57952?

It affects 1 product.


Products: Its-a-Feature Mythic.

## How do I fix CVE-2026-57952?

No fix has been published for CVE-2026-57952 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-57952 being exploited?

There is no known exploitation of CVE-2026-57952 in the wild and no public exploit code.

## Other vulnerabilities in its-a-feature Mythic

- [CVE-2026-57951](https://insights.sbomify.com/CVE-2026-57951/): Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step Table (high 7.1)
- [CVE-2026-57953](https://insights.sbomify.com/CVE-2026-57953/): Mythic < 3.4.0.60 - Unauthorized Automation Workflow Modification via eventing_import_automatic_webhook Endpoint (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-57952 and fix it if it is affected.

What it is: CVE-2026-57952 is a medium-severity missing authorization vulnerability in its-a-feature Mythic, published on 29 Jun 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-2026-57952 in the wild and no public exploit code.

Affected product: its-a-feature Mythic. 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-2026-57952/ (Markdown: https://insights.sbomify.com/CVE-2026-57952/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-57952
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-57952
- OSV: https://osv.dev/vulnerability/CVE-2026-57952

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-57952/
Summaries are generated and may contain mistakes; the official description above is the record.