CVE-2026-100626: Cap-go capgo.app · Insecure Direct Object Reference
Affects Cap-go capgo.appSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium.
Data as of 10 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Cap-gocapgo.app | Affected
| Fixed in– |
GitHubcap-go/capgo.apppkg:github/cap-go/capgo.appOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is available, restrict access to the PUT /app/:appId endpoint and monitor usage for suspicious activity. Avoid sharing service-role-signed URLs and consider implementing stricter validation on user-supplied paths to prevent unauthorized access.
Description
CVE-2026-100626 is an authorization bypass vulnerability in capgo.app versions up to 12.128.2. It affects the PUT /app/:appId endpoint, allowing authenticated users to supply arbitrary icon storage paths in a private images bucket. This enables them to obtain service-role-signed URLs valid for 7 days, which can be used to read cross-tenant objects such as user avatars, organization logos, and app icons without proper authorization.