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Description

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.

PUBLISHED Reserved 2026-07-06 | Published 2026-07-07 | Updated 2026-07-09 | Assigner VulnCheck




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

HIGH: 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Problem types

Missing Authorization

Product status

Default status
unaffected

Any version
affected

Credits

George Chen reporter

References

github.com/CapSoftware/Cap/issues/1981 exploit

github.com/CapSoftware/Cap/issues/1981 (GitHub Issue) issue-tracking

github.com/CapSoftware/Cap (Product) product

github.com/...ommit/8d48642b6e7938af238386383ef1c273be4110dd (Patch Commit) patch

www.vulncheck.com/...s-control-in-video-ai-metadata-endpoint third-party-advisory

github.com/CapSoftware/Cap/pull/1926 (Pull Request) technical-description

cve.org (CVE-2026-59704)

nvd.nist.gov (CVE-2026-59704)

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