# CVE-2026-72561: Peppermint Lab Peppermint - Broken Access Control

> Authenticated non-admin users can modify global SSO settings to redirect logins to an attacker-controlled identity provider, enabling credential harvesting.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 11 Aug 2026
- **Updated:** 11 Aug 2026
- **Also known as:** GHSA-68fr-jcrp-77h3

## What is CVE-2026-72561?

CVE-2026-72561 is a high-severity missing authorization vulnerability in Peppermint, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A broken access control vulnerability in Peppermint Lab Peppermint through commit ba6e217 allows any authenticated non-administrative user to reconfigure the platform global OIDC/SSO settings via an unprotected configuration endpoint. The endpoint performs no administrative role check before applying new OIDC issuer settings. An attacker can redirect all SSO logins to an attacker-controlled identity provider, enabling credential harvesting for all platform users.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-72561?


## How do I fix CVE-2026-72561?

No fix has been published for CVE-2026-72561 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-72561 being exploited?

There is no known exploitation of CVE-2026-72561 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-72561 and fix it if it is affected.

What it is: CVE-2026-72561 is a high-severity missing authorization vulnerability in Peppermint, published on 11 Aug 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-2026-72561 in the wild and no public exploit code.

Affected product: Peppermint. 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-2026-72561/ (Markdown: https://insights.sbomify.com/CVE-2026-72561/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-72561
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72561
- OSV: https://osv.dev/vulnerability/CVE-2026-72561

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-72561/
Summaries are generated and may contain mistakes; the official description above is the record.