# CVE-2026-72561: Peppermint Lab Peppermint broken access control in OIDC configuration

Source: https://junglewise.ai/threats/cve-2026-72561-peppermint-lab-peppermint-broken-access-control-in-oidc  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-11. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-72561 · Severity: high · CVSS 8.8 · Published 2026-08-11

Peppermint is an open-source issue tracking and help desk platform. A vulnerability allows any logged-in user (even non-administrators) to reconfigure the platform's Single Sign-On (SSO) settings. An attacker could redirect all user logins to a fake identity provider, capturing credentials and compromising every user account on the platform.

Technologies: [Peppermint Lab Peppermint](https://junglewise.ai/threats/technologies/peppermint). Vendors: [Peppermint Lab](https://junglewise.ai/threats/vendors/peppermint-lab).

## Quick answers

**Is CVE-2026-72561 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-72561 being exploited in the wild.

**How severe is CVE-2026-72561?** High severity, with a CVSS score of 8.8, published 11 August 2026.

**Which products and versions are affected?** Peppermint Lab Peppermint through commit ba6e217.

**Is there a fix for CVE-2026-72561?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-72561 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-72561?** Check whether you run Peppermint Lab Peppermint at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is a broken access control vulnerability (CWE-639) in Peppermint's OIDC/SSO configuration endpoint. The endpoint fails to perform role-based authorization checks before processing requests to modify global OIDC issuer settings. Any authenticated user can send a request to reconfigure the OIDC issuer URL, bypassing the administrative role requirement. An attacker needs only a valid user account on the platform (no special privileges required). The vulnerability allows credential harvesting by redirecting SSO logins to an attacker-controlled identity provider, potentially compromising all platform users. The affected code is in commit ba6e217 and earlier versions.

## Affected products

- Peppermint Lab Peppermint through commit ba6e217

## Timeline

- 2026-08-11: disclosed
- 2026-07-17: other: Repository archived by owner on July 17, 2026

## References

- [https://github.com/Peppermint-Lab/peppermint](https://github.com/Peppermint-Lab/peppermint)

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- [Peppermint missing authorization in time entries and attachments](https://junglewise.ai/threats/cve-2026-111353-peppermint-through-0-5-5-contains-a-missing-authorization)
- [Peppermint authorization bypass in logout endpoint](https://junglewise.ai/threats/cve-2026-85392-peppermint-authorization-bypass-in-logout-endpoint)
- [Peppermint hardcoded JWT signing secret in docker-compose.yml](https://junglewise.ai/threats/cve-2026-85391-peppermint-hardcoded-jwt-signing-secret-in-docker-compose-yml)
- [Peppermint Lab Peppermint broken access control in role checks](https://junglewise.ai/threats/cve-2026-72555-peppermint-lab-peppermint-broken-access-control-in-role-checks)