Is CVE-2026-111353 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-111353 being exploited in the wild.

How severe is CVE-2026-111353?

Medium severity, with a CVSS score of 4.3, published 15 October 2026.

Which products and versions are affected?

Peppermint Lab Peppermint through 0.5.5.

Is there a fix for CVE-2026-111353?

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-2026-111353 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-111353?

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.

CVE-2026-111353: Peppermint missing authorization in time entries and attachments

CVE-2026-111353 · Severity: medium · CVSS 4.3 · Published 2026-10-15

Peppermint is a ticket management and time tracking system. An authenticated user can create time entries and upload file attachments while impersonating other users by including a user ID in the request. This allows an attacker to falsify work records, manipulate billing data, and associate malicious files with other employees' accounts.

Technologies: Peppermint Lab Peppermint. Vendors: Peppermint Lab.

Quick answers

Is CVE-2026-111353 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-111353 being exploited in the wild.
How severe is CVE-2026-111353?: Medium severity, with a CVSS score of 4.3, published 15 October 2026.
Which products and versions are affected?: Peppermint Lab Peppermint through 0.5.5.
Is there a fix for CVE-2026-111353?: 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-2026-111353 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-111353?: 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

The vulnerability is a missing authorization check in the /api/v1/time/new and /api/v1/storage/ticket/:id/upload/single endpoints. Both endpoints accept a user ID from the request body without validating that the authenticated user has permission to act on behalf of another user. An attacker with valid credentials can POST requests with an arbitrary user ID to create time tracking records or upload files attributed to any other user.

Affected products

Peppermint-Lab Peppermint through 0.5.5

Timeline

2026-10-15: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.