Auth bypass in Cap
CVE-2026-59704
Cap's GET /api/video/ai endpoint fails to validate user ownership or membership before returning private video AI metadata including titles, summaries, and chapters. Authenticated attackers can supply arbitrary video IDs to read sensitive AI-generated content and trigger unauthorized AI generation that consumes the video owner's credits without consent.
Vulnerability class: Broken Access Control
EPSS: 0.002 (12.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Cap — versions 0
Weakness classification (CWE)
References
- GitHub Issue (issue-tracking)
- Product (product)
- Patch Commit (patch)
- disclosure@vulncheck.com (third-party-advisory)
- Pull Request (issue-tracking, technical-description, third-party-advisory)
Frequently asked questions
- What is CVE-2026-59704?
- CVE-2026-59704 is a high-severity vulnerability in Cap, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-07-07.
- How severe is CVE-2026-59704?
- High severity. CVSS v3 base score is 7.1 out of 10.