What’s Vulnerable › Vulnerabilities

CVE-2026-111353: Peppermint through 0.5.5 Missing Authorization via Time-Tracking and Attachment Upload Endpoints

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-21
• Weakness: CWE-862

Description

Peppermint through 0.5.5 contains a missing authorization vulnerability that allows any authenticated user to create time entries and attachments as other users by supplying a user id in the request body. Attackers can send POST requests to /api/v1/time/new or /api/v1/storage/ticket/:id/upload/single to attach files and time records to any ticket under another user's identity.

Affected products

• Peppermint-Lab peppermint: through 0.5.5

References

• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/storage.ts#L9-L35
• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/time.ts#L6-L27
• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/main.ts#L57-L70
• https://hackmd.io/@hieuPenguinnn/peppermint-data-logs-missing-authorization
• https://www.vulncheck.com/advisories/peppermint-through-0.5.5-missing-authorization-via-time-tracking-and-attachment-upload-endpoints
• https://hackmd.io/@hieuPenguinnn/peppermint-data-logs-missing-authorization

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