CVE-2026-109562 SnapOtter 1.15.10 through 2.2.0 Missing Authorization via Upload and Preview API
Authenticated users can bypass permission checks to upload arbitrary files and trigger decoder vulnerabilities, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109562?
CVE-2026-109562 is a medium-severity missing authorization vulnerability in snapotter-hq SnapOtter, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SnapOtter 1.15.10 through 2.2.0 contains a missing authorization vulnerability that allows any authenticated principal to call the /api/v1/upload, /api/v1/preview and /api/v1/preview/generate handlers without permission checks. Attackers holding even a settings:read-scoped API key can stage arbitrary files outside storage quota, served unauthenticated via /api/v1/download, and feed crafted input to image and video decoders.
Weakness: CWE-862
Which versions are affected by CVE-2026-109562?
How do I fix CVE-2026-109562?
No fix has been published for CVE-2026-109562 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-109562 being exploited?
There is no known exploitation of CVE-2026-109562 in the wild and no public exploit code.
Sources
Also known as GHSA-j3v8-3vrc-7ghh.