CVE-2026-109562: SnapOtter 1.15.10 through 2.2.0 Missing Authorization via Upload and Preview API

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-12 · updated 2026-10-16
Weakness: CWE-862

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.

Affected products

snapotter-hq SnapOtter: from 1.15.10 through 2.2.0

References

https://github.com/snapotter-hq/SnapOtter
https://github.com/snapotter-hq/SnapOtter/blob/v2.2.0/apps/api/src/routes/files.ts
https://github.com/snapotter-hq/SnapOtter/commit/1544966b52b8f2b40ef3794e43ffd4f0214550ba
https://www.vulncheck.com/advisories/snapotter-1.15.10-through-2.2.0-missing-authorization-via-upload-and-preview-api

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