Auth bypass in Cortezaproject Corteza
CVE-2026-108729
Corteza through 2024.9.10 contains an incorrect authorization vulnerability in compose attachment endpoints that allows unauthenticated attackers to download private attachments by setting the URL kind segment to page, icon, or namespace. Attackers who know a private record or module attachment id can request the original or preview route without a token or signature to retrieve files across namespace and record permission boundaries.
Vulnerability class: Broken Access Control
Published .
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.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind03/corteza-attachment-kind-confusion-unauth-read (third-party-advisory)
- github.com/cortezaproject/corteza/blob/3835dfc4ac8bd89381753f09042ad147a4502576… (technical-description)
- github.com/cortezaproject/corteza/blob/3835dfc4ac8bd89381753f09042ad147a4502576… (technical-description)
- github.com/cortezaproject/corteza/commit/3b68aa30c7261f729fcf8202f3eab9cf7d9168… (patch)
- github.com/cortezaproject/corteza (product)
- www.vulncheck.com/advisories/corteza-through-2024.9.10-unauthenticated-attachme… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108729?
- CVE-2026-108729 is a medium-severity vulnerability in Cortezaproject Corteza, classified under Incorrect Authorization. CVSS score: 5.9/10. Published 2026-10-11.
- How severe is CVE-2026-108729?
- Medium severity. CVSS v3 base score is 5.9 out of 10.