CVE-2026-100626

Medium

Description

capgo through 12.128.2 contains an insecure direct object reference vulnerability in the PUT /app/:appId endpoint that accepts attacker-controlled icon storage paths. Authenticated users can supply arbitrary paths in the private images bucket and obtain service-role-signed URLs valid for 7 days to read cross-tenant objects including user avatars, organization logos, and app icons without authorization.

SeverityMedium

CVSS4.3

Exploit probability—

ProductCap-go Capgo.app

PublishedSep 26, 2026

First seenSep 26, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Vendor advisories

github.com/Cap-go/capgo.app/security/advisories/GHSA-84xq-4rv7-p252

Affected products

Product	Affected versions	Fixed in
Cap-go capgo.app	v ≤ 12.128.2	—

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