Auth bypass in Puemos Craftplan
CVE-2026-76876
Craftplan before 0.5.1 contains a broken access control vulnerability that allows unauthenticated attackers to read sensitive credentials by exploiting an unconditional authorization policy on the Settings resource. Attackers can send a GET request to the settings API endpoint with a valid record ID to retrieve decrypted SMTP passwords, email API keys, and email API secrets due to the read policy using an always-allow authorization check that bypasses all identity verification.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes)
- disclosure@vulncheck.com
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76876?
- CVE-2026-76876 is a medium-severity vulnerability in Puemos Craftplan, classified under Missing Authorization. CVSS score: 5.9/10. Published 2026-08-21.
- How severe is CVE-2026-76876?
- Medium severity. CVSS v3 base score is 5.9 out of 10.