Auth bypass in Gridaco Grida
CVE-2026-123623
Grida through 0.0.24 contains a missing authorization vulnerability in the Forms file-preview API routes that allows unauthenticated attackers to read other organizations' form response files. Attackers can use form and field IDs exposed in public form payloads with a chosen path parameter to obtain service-role signed URLs for attachments and connected Supabase bucket objects.
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
- github.com/gridaco/grida (product)
- github.com/gridaco/grida/blob/v0.0.24/editor/app/(api)/private/editor/[form_id]… (technical-description)
- github.com/gridaco/grida/commit/05f5a54c31a6662942a42b50e34a329ab3642fe1 (patch)
- github.com/gridaco/grida/issues/1107 (issue-tracking)
- github.com/gridaco/grida/pull/1108 (issue-tracking, patch)
- hackmd.io/@hieund/grida-forms-file-preview-missing-authz (technical-description)
- www.vulncheck.com/advisories/grida-through-0.0.24-missing-authorization-in-form… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-123623?
- CVE-2026-123623 is a medium-severity vulnerability in Gridaco Grida, classified under Missing Authorization. CVSS score: 5.9/10. Published 2026-11-06.
- How severe is CVE-2026-123623?
- Medium severity. CVSS v3 base score is 5.9 out of 10.